Technological society has succeeded in multiplying the opportunities for pleasure, but it has great difficulty in generating joy.

We consider Christmas as the encounter, the great encounter, the historical encounter, the decisive encounter, between God and mankind. He who has faith knows this truly; let him rejoice.

The sweetest pleasure arises from difficulties overcome.

Of all human activities, man's listening to God is the supreme act of his reasoning and will.

Physics does not change the nature of the world it studies, and no science of behavior can change the essential nature of man, even though both sciences yield technologies with a vast power to manipulate the subject matters.

If you want peace work for justice.