He who studies books alone will know how things ought to be, and he who studies men will know how they are.

The celebrated Galen said that employment was nature's physician. It is indeed so important to happiness that indolence is justly considered the parent of misery.

There is this difference between happiness and wisdom, that he that thinks himself the happiest man, really is so; but he who thinks himself the wisest, is generally the greatest fool.

True friendship is like sound health, the value of it is seldom known until it is lost.

Great minds must be ready not only to take opportunities, but to make them.

Love is an alliance of friendship and animalism; if the former predominates it is passion exalted and refined; if the latter, gross and sensual.