National Academy of Sciences quote: "The formal scientific definition of theory is quite different from the everyday meaning of the word. It refers to a comprehensive explanation of some aspect of nature that is supported by a vast body of evidence."

Teachers greatly influence how students perceive and approach struggle in the mathematics classroom....
NATIONAL COUNCIL OF TEACHERS OF MATHEMATICS

Fall not in love, therefore; it will stick to your face.
NATIONAL LAMPOON

Let not the sands of time get in your lunch.
NATIONAL LAMPOON

In women who are pregnant, it may make it more likely to have premature babies or have low birth wei...
NATIONAL CENTER

For both mice and men, social status is important; for mice, losing to a dominant mouse usually mean...
NATIONAL INSTITUTE

Fresh Prince of Bel Air.
NATIONAL PRESS

sock-it-to-me girl.
NATIONAL PRESS

[For Liberty native and architecture historian Douglas Lewis, every Coast building has a story. The ...
NATIONAL GALLERY

Leighton Pierce: Warm Occlusion,
NATIONAL GALLERY

By wearing Judy Miller's prisoner number, reporters and other participants in the race will show sol...
NATIONAL PRESS

Because there is no way to tell [in the short term] whether symptoms are from a TIA or an acute stro...
NATIONAL INSTITUTE

Global data indicate a 30-year trend toward more frequent and intense hurricanes.
NATIONAL CENTER

Because there is no way to tell (in the short term) whether symptoms are from a TIA or an acute stro...
NATIONAL INSTITUTE

Whether an officer should have a weapon when entering a court facility is a very controversial subje...
NATIONAL CENTER

The continuing decline in the rate of cancer deaths once again affirms the progress we have made aga...
NATIONAL INSTITUTE

most effective treatments for methamphetamine addiction are cognitive behavioral interventions - des...
NATIONAL INSTITUTE

can cause catastrophe.
NATIONAL CENTER

These genes are for risk, not for destiny,
NATIONAL PRESS

When you see a team more often, and the players see you more often, you build up credibility, ... Bu...
NATIONAL LEAGUE

Because the first five years build a lifetime
LINKED-UP ACADEMY, LLC

America has begun a spiritual reawakening. Faith and hope are being restored. Americans are turning ...
, TO THE NATIONAL ASSOCIATION OF EVANGELICALS, COLUMBUS, OHIO

A climate's changes are tough to quantify. Butterflies can help. Entomologists prefer "junk species-...
JOHNSON RIZZO NATIONAL GEOGRAPHIC FEB. 2013

A true Christian is made by faith and love toward Christ. Our sins do not in the least hinder our Ch...
LETTERS OF ST. HERMAN OF ALASKA

Lord, grant that I might not so much seek to be loved as to love.
FRANCIS OF ASSISI

They that are of the flesh cannot do the works of the Spirit, neither can they that are spiritual do...
IGNATIUS OF ANTIOCH

Nothing is better than peace, by which all warfare of heavenly and earthly foes is brought to naught...
IGNATIUS OF ANTIOCH

Reverence the deacons as you would the command of God.
IGNATIUS OF ANTIOCH

Let not then any one deceive you, as indeed you are not deceived, inasmuch as you are wholly devoted...
IGNATIUS OF ANTIOCH

It is outrageous to utter the name of Jesus Christ and live in Judaism.
IGNATIUS OF ANTIOCH

Let us therefore be of a reverent spirit, and fear the long-suffering of God, that it tend not to ou...
IGNATIUS OF ANTIOCH

Even the heavenly powers and the angels in their splendor and the principalities, both visible and i...
IGNATIUS OF ANTIOCH

I prefer death in Christ Jesus to power over the farthest limits of the earth. He who died in place ...
IGNATIUS OF ANTIOCH

I have many deep thoughts in God, but I take my own measure, lest I perish by boasting... For I myse...
IGNATIUS OF ANTIOCH

Let no rank puff up anyone; for faith and love are paramount - the greatest blessings in the world.
IGNATIUS OF ANTIOCH

I am writing to all the churches to let it be known that I will gladly die for God if only you do no...
IGNATIUS OF ANTIOCH

May nothing entice me till I happily make my way to Jesus Christ! Fire, cross, struggles with wild b...
IGNATIUS OF ANTIOCH

Nothing is more precious than peace, by which all war, both in Heaven and Earth, is brought to an en...
IGNATIUS OF ANTIOCH

I have no taste for corruptible food nor for the pleasures of this life. I desire the Bread of God, ...
IGNATIUS OF ANTIOCH

There is one Physician, of flesh and of spirit, originate and unoriginate, God in man, true Life in ...
IGNATIUS OF ANTIOCH

Only let it be in the name of Jesus Christ, that I may suffer together with Him! I endure everything...
IGNATIUS OF ANTIOCH

I would rather die and come to Jesus Christ than be king over the entire earth. Him I seek who died ...
IGNATIUS OF ANTIOCH

If a superior give any order to one who is under him which is against that man's conscience, alt...
FRANCIS OF ASSISI

Of the love or hatred God has for the English, I know nothing, but I do know that they will all be t...
JOAN OF ARC

In the light of faith I am strong, constant, and persevering.
CATHERINE OF SIENA

One life is all we have and we live it as we believe in living it. But to sacrifice what you are and...
JOAN OF ARC

It is true that the king has made a truce with the duke of Burgundy for fifteen days and that the du...
JOAN OF ARC

About Jesus Christ and the Church, I simply know they're just one thing.
JOAN OF ARC

Act, and God will act.
JOAN OF ARC

If I am not, may God put me there; and if I am, may God so keep me.
JOAN OF ARC

You say that you are my judge; I do not know if you are; but take good heed not to judge me ill, bec...
JOAN OF ARC

Get up tomorrow early in the morning, and earlier than you did today, and do the best that you can. ...
JOAN OF ARC

Children say that people are hung sometimes for speaking the truth.
JOAN OF ARC

Above all the grace and the gifts that Christ gives to his beloved is that of overcoming self.
FRANCIS OF ASSISI

If you have men who will exclude any of God's creatures from the shelter of compassion and pity,...
FRANCIS OF ASSISI

The poison of selfishness destroys the world.
CATHERINE OF SIENA

Nothing is more useless in developing a nation's economy than a gun, and nothing blocks the road...
HUSSEIN OF JORDAN

I would rather die than do something which I know to be a sin, or to be against God's will.
JOAN OF ARC

It is no use walking anywhere to preach unless our walking is our preaching.
FRANCIS OF ASSISI

Where there is injury let me sow pardon.
FRANCIS OF ASSISI

Wherever the bishop appears, there let the people be, even as wheresoever Christ Jesus is, there is ...
IGNATIUS OF ANTIOCH

For our part, we shall continue to work for the new dawn when all the Children of Abraham and their ...
HUSSEIN OF JORDAN

Neither fear nor self-interest can convert the soul. They may change the appearance, perhaps even th...
BERNARD OF CLAIRVAUX

It is here, my daughters, that love is to be found -- not hidden away in corners but in the midst of...
TERESA OF AVILA

We bloomed in Spring. Our bodies are the leaves of God. The apparent seasons of life and death our e...
TERESA OF AVILA

Now is the season for sailing; for already the chattering swallow is come and the pleasant west wind...
LEONIDAS OF TARENTUM

Pure, holy simplicity confounds all the wisdom of this world and the wisdom of the flesh.
FRANCIS OF ASSISI

We should never desire to be over others. Instead, we ought to be servants who are submissive to eve...
FRANCIS OF ASSISI

Praised be You, my Lord, through our Sister, Mother Earth, who sustains and governs us, producing va...
FRANCIS OF ASSISI

I am the herald of the Great King.
FRANCIS OF ASSISI

Praised be You, my Lord, through Sister Moon and the stars; in the heavens, you have made them brigh...
FRANCIS OF ASSISI

Holy wisdom confounds Satan and all his wickednesses.
FRANCIS OF ASSISI

No one is to be called an enemy, all are your benefactors, and no one does you harm. You have no ene...
FRANCIS OF ASSISI

We must not be wise and prudent according to the flesh. Rather, we must be simple, humble and pure.
FRANCIS OF ASSISI

If God can work through me, he can work through anyone.
FRANCIS OF ASSISI

It is in pardoning that we are pardoned.
FRANCIS OF ASSISI

We should face reality and our past mistakes in an honest, adult way. Boasting of glory does not mak...
HUSSEIN OF JORDAN

We can only learn to know ourselves and do what we can -- namely, surrender our will and fulfill God...
TERESA OF AVILA

Pitiful and pitied by no one, why have I come to the ignominy of this detestable old age, who was ru...
ELEANOR OF AQUITAINE

He (Scipio of Rome) did not consider that republic flourishing whose walls stand, but whose morals a...
AUGUSTINE OF HIPPO

Error, indeed, is never set forth in its naked deformity, lest, being thus exposed, it should at onc...
IRENAEUS OF LYONS

Nothing is more active than thought, for it travels over the universe, and nothing is stronger than ...
THALES OF MILETUS

If I had obeyed God, as I have obeyed him, He would not have punished me.
SWAMWRA OF BASRA

Be praised, my Lord, through all your creatures, especially through my lord Brother Sun, who brings ...
FRANCIS OF ASSISI

Man conquers the world by conquering himself.
ZENO OF CITIUM

I don't exist when you don't see me.
SISTERS OF MERCY

Be gentle to all and stern with yourself.
TERESA OF AVILA

Every day He humbles Himself just as He did when from from His heavenly throne into the Virgin's wom...
FRANCIS OF ASSISI

You could not step twice into the same rivers; for other waters are ever flowing on to you.
HERACLITUS OF EPHESUS

To have courage for whatever comes in life -- everything lies in that.
TERESA OF AVILA

Only a brave person is willing to honestly admit, and fearlessly to face, what a sincere and logical...
RODAN OF ALEXANDRIA

We know only that we are living in these bodies and have a vague idea, because we have heard it, and...
TERESA OF AVILA

You can't step twice into the same river.
HERACLITUS OF EPHESUS

Even on the cross He did not hide Himself from sight; rather, He made all creation witness to the pr...
ATHANASIUS OF ALEXANDRIA

He, the Life of all, our Lord and Saviour, did not arrange the manner of his own death lest He shoul...
ATHANASIUS OF ALEXANDRIA

I held my heart back from positively accepting anything, since I was afraid of another fall, and in ...
AUGUSTINE OF HIPPO

Thou hast made us for thyself, O Lord, and our heart is restless until it finds its rest in thee.
AUGUSTINE OF HIPPO

The world is a book and those who do not travel read only one page.
AUGUSTINE OF HIPPO

That prayer has great power which a person makes with all his might. It makes a sour heart sweet, a ...
MECHTHILD OF MAGHEBURG

Lord, make me an instrument of thy peace.
Where there is hatred, let me sow love,
Where th...
FRANCIS OF ASSISI

Oh, God, to know you is life. To serve You is freedom. To praise you is the soul's joy and delight. ...
AUGUSTINE OF HIPPO

All the darkness in the world cannot extinguish the light of a single candle.
FRANCIS OF ASSISI

We have been called to heal wounds, to unite what has fallen apart, and to bring home those who have...
FRANCIS OF ASSISI

How can the past and future be, when the past no longer is, and the future is not yet? As for the pr...
AUGUSTINE OF HIPPO

O my God, what must a soul be like when it is in this state! It longs to be all one tongue with whic...
TERESA OF AVILA

You can lease the peace of mind You bought a mask, I put it on. You never thought to ask me If I wea...
SISTERS OF MERCY

Let thy speech be better than silence, or be silent.
DIONYSIUS OF HALICARNASSUS

The Lord has turned all our sunsets into sunrise.
CLEMENT OF ALEXANDRIA

Of all the arts in which the wise excel, nature's chief masterpiece is writing well.
DUKE OF BUCKINGHAM

To reach something good it is very useful to have gone astray, and thus acquire experience.
TERESA OF AVILA

Hope is the poor man's bread.
THALES OF MILETUS

It is vain to do with more what can be done with less.
WILLIAM OF OCCAM

Suddenly is the soul oned to God when it is truly peaced in itself: for in Him is found no wrath. An...
JULIAN OF NORWICH

What I gave I have, what I spent I had; and what I left I lost.
ROBERT OF DONCASTE

True repentance is to cease from sinning.
AMBROSE OF MILAN

True recollection has characteristics by which it can be easily recognized. It produces a certain ef...
TERESA OF AVILA

We
BAND OF BROTHERS

If you will discipline yourself to make your mind self-sufficient you will thereby be least vulnerab...
CRITIAS OF ATHENS

My father told me that if you saw a man in a Rolls Royce you could be sure he was not a gentleman un...
EARL OF ARRAN

I do not read advertisements. I would spend all of my time wanting things.
ARCHIBISHOP OF CANTERBURY

Read Homer once, and you can read no more. For all books else appear so mean, and so poor. Verse wil...
DUKE OF BUCKINGHAM

Do not dismayed daughters, at the number of things which you have to consider before setting out on ...
TERESA OF AVILA

Shun security.
THALES OF MILETOS

Nails were not enough to hold God-and-man nailed and fastened on the Cross, had not love held Him th...
CATHERINE OF SIENA

I have often repented speaking, but never of holding my tongue.
XENOCRATES OF CHALCEDON

He who labors diligently need never despair; for all things are accomplished by diligence and labor.
MENANDER OF ATHENS

Dignity is like a perfume; those who use it are scarcely conscious of it.
CHRISTINA OF SWEDEN

Little, vicious minds abound with anger and revenge, and are incapable of feeling the pleasure of f...
EARL OF CHESTERFIELD

Most men are bad.
BIAS OF PRIENE

Character is fate. (Destiny)
HERACLITUS OF EPHESUS

If you will discipline yourself to make your mind self-sufficient you will thereby be least vulnera...
CRITIAS OF ATHENS

Extreme remedies are very appropriate for extreme diseases.
HIPPOCRATES OF IPHICRATES

Right is right even if no one is doing it; wrong is wrong even if everyone is doing it.
AUGUSTINE OF HIPPO

The soul is made of love and must ever strive to return to love. Therefore, it can never find rest n...
MECHTHILD OF MAGDENBURG

Opposition brings concord. Out of discord comes the fairest harmony.
HERACLITUS OF EPHESUS

A man never stands as tall as when he kneels to help a child.
KNIGHTS OF PYTHAGORAS

Manners maketh man.
WILLIAM OF WYKEHAM

God bids you not to commit lechery, that is, not to have sex with any woman except your wife. You as...
AUGUSTINE OF HIPPO

[Y]ou are not ashamed of your sin [in committing adultery] because so many men commit it. Man's wick...
AUGUSTINE OF HIPPO

We have two ears and one mouth, so we should listen more than we say.
ZENO OF CITIUM

Be a craftsman in speech that thou mayest be strong, for the strength of one is the tongue, and spee...
MAXIMS OF PTAHHOTEP

Has not peace honours and glories of her own unattended by the dangers of war?
HERMOCRATES OF SYRACUSE

From Syria even to Rome I fight with wild beasts, by land and sea, by night and by day, being bound ...
IGNATIUS OF ANTIOCH

O thou Sun, send me as far over the earth as is my pleasure and thine, and may I make the acquaintan...
APOLLONIUS OF TYANA

Great and glorious God, and Thou Lord Jesus, I pray you shed abroad your light in the darkness of my...
FRANCIS OF ASSISI

Where there is charity and wisdom, there is neither fear nor ignorance.
FRANCIS OF ASSISI

The Father willed that his blessed and glorious Son, whom he gave to us and who was born for us, sho...
FRANCIS OF ASSISI

Men lose all the material things they leave behind them in this world, but they carry with them the ...
FRANCIS OF ASSISI

It would behoove the world to become used to this fact: that without a just solution to the Palestin...
HUSSEIN OF JORDAN

Lord, make me an instrument of thy peace. Where there is hatred, let me sow love.
FRANCIS OF ASSISI

I was in my thirteenth year when I heard a voice from God to help me govern my conduct. And the firs...
JOAN OF ARC

A single sunbeam is enough to drive away many shadows.
FRANCIS OF ASSISI

For it is in giving that we receive.
FRANCIS OF ASSISI

King of England, and you, duke of Bedford, who call yourself regent of the kingdom of France... sett...
JOAN OF ARC

I am not afraid... I was born to do this.
JOAN OF ARC

Real victories are those that protect human life, not those that result from its destruction or emer...
HUSSEIN OF JORDAN

It is not fitting, when one is in God's service, to have a gloomy face or a chilling look.
FRANCIS OF ASSISI

All what we hope for is that a day will come, when we have all gone, when people will say that this ...
HUSSEIN OF JORDAN

A man must fortify himself and understand that a wise man who yields to laziness or anger or passion...
APOLLONIUS OF TYANA

Start by doing what's necessary; then do what's possible; and suddenly you are doing the imp...
FRANCIS OF ASSISI

Since God had commanded it, it was necessary that I do it. Since God commanded it, even if I had a h...
JOAN OF ARC

There's only one thing I never did and wish I had done: climbed over a fence.
MARY OF TECK

Feast of Josephine Butler, Social Reformer, 1906 Commemoration of Apolo Kivebulaya, Priest, Evangel...
BERNARD OF CLAIRVAUX

Feast of George, Martyr, Patron of England, c.304 Commemoration of Michael Ramsey, Archbishop of Ca...
BERNARD OF CLAIRVAUX

Honor and glory are indeed due to God and to Him alone, but He will accept neither of them if they b...
BERNARD OF CLAIRVAUX

Feast of Bernard, Abbot of Clairvaux, Teacher, 1153 Commemoration of William & Catherine Booth, Fou...
BERNARD OF CLAIRVAUX

Feast of Bernard, Abbot of Clairvaux, Teacher, 1153 Commemoration of William & Catherine Booth, Foun...
BERNARD OF CLAIRVAUX

Beginning a short series on prayer: Wherever... thou shalt be, pray secretly within thyself. If th...
BERNARD OF CLAIRVAUX

Commemoration of Crispin & Crispinian, Martyrs at Rome, c.285 Jesus, thou joy of loving hearts, ...
BERNARD OF CLAIRVAUX

Continuing a series on the person of Jesus: Jesus is honey in the mouth, music in the ear, a song ...
BERNARD OF CLAIRVAUX

Feast of Bernard, Abbot of Clairvaux, Teacher, 1153 Commemoration of William & Catherine Booth, Fou...
BERNARD OF CLAIRVAUX

Dogs and philosophers do the greatest good and get the fewest rewards.
DIOGENES OF SINOPE

Of what use is a philosopher who doesn't hurt anybody's feelings?
DIOGENES OF SINOPE

Feast of Anselm, Abbot of Le Bec, Archbishop of Canterbury, Teacher, 1109 Jesus, as a mother you ga...
ANSELM OF CANTERBURY

Feast of Anselm, Abbot of Le Bec, Archbishop of Canterbury, Teacher, 1109 For I seek not to under...
ANSELM OF CANTERBURY

O Holy Spirit, descend plentifully into my heart. Enlighten the dark corners of this neglected dwell...
AUGUSTINE OF HIPPO

The three most ancient opinions concerning God are Anarchia, Polyarchia, and Monarchia. The first tw...
GREGORY OF NYSSA

Business tomorrow.
ARCHIAS OF THEBES

For it is not needful, to use a common proverb, that one should drink up the ocean who wishes to lea...
IRENAEUS OF LYONS

Grant me the treasure of sublime poverty: permit the distinctive sign of our order to be that it doe...
FRANCIS OF ASSISI

Holy poverty confounds cupidity and avarice and the cares of this world.
FRANCIS OF ASSISI

Take heed, then, often to come together to give thanks to God, and show forth His praise. For when y...
IGNATIUS OF ANTIOCH

You must all follow the lead of the bishop, as Jesus Christ followed that of the Father; follow the ...
IGNATIUS OF ANTIOCH

I feel in me the vocation of the Priest. I have the vocation of the Apostle. Martyrdom was the dream...
THéRèSE OF LISIEUX

Pythagoras said that medicine is the most godlike of arts. But if the most godlike, it should tend t...
APOLLONIUS OF TYANA

Just as an individual of pre-eminent worth transforms democracy into a monarchy of the best man, eve...
APOLLONIUS OF TYANA

Now I begin to be a disciple... Let fire and cross, flocks of beasts, broken bones, dismemberment......
IGNATIUS OF ANTIOCH

I am God's wheat, and I shall be ground by the teeth of beasts, that I may become the pure bread...
IGNATIUS OF ANTIOCH

While you are proclaiming peace with your lips, be careful to have it even more fully in your heart.
FRANCIS OF ASSISI

The gods, as they are beneficent, if they find anyone who is healthy and whole and unscarred by vice...
APOLLONIUS OF TYANA

A man can hide all things, excepting twain-- That he is drunk, and that he is in love.
ANTIPHANES OF MACEDONIA

if being is many, it must be both like and unlike, and this is impossible, for neither can the like ...
ZENO OF CITIUM

YHVH Is Love; Satan Is Pride
MONK OF YHVH

Without love, deeds, even the most brilliant, count as nothing.
THERESE OF LISIEUX

You are my Lord, because You have no need of my goodness.
AUGUSTINE OF HIPPO

War is the father of us all, King of all. Some it makes gods, some it makes men, some it makes slave...
HERACLITUS OF EPHESUS

And all shall be well. And all shall be well. And all manner of things shall be exceeding well.
JULIAN OF NORWICH

God loved us before he made us; and his love has never diminished and never shall.
JULIAN OF NORWICH

If God is slow in answering your request, or if you ask but do not promptly receive anything, do not...
ISAAC OF NINEVEH

Don't keep your good manners to the end another time, but begin with them.
APOLLONIUS OF TYANA

If you understood him, it would not be God.
AUGUSTINE OF HIPPO

The formal scientific definition of theory is quite different from the everyday meaning of the word. It refers to a comprehensive explanation of some aspect of nature that is supported by a vast body of evidence.

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National Academy of Sciences

The formal scientific definition of theory is quite different from the everyday meaning of the word. It refers to a comprehensive explanation of some aspect of nature that is supported by a vast body of evidence.

National Academy of Sciences

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