God grant me the serenity to accept the things I cannot change, courage to change the things I can, and wisdom to know the difference.

God, give us the grace to accept with serenity the things that cannot be changed; Give us the courage to change the things which should be changed; Give us the wisdom to distinguish the one from the other.

Every experience proves that the real problem of our existence lies in the fact that we ought to love one another, but do not.

There is no social evil, no form of injustice whether of the feudal or the capitalist order which has not been sanctified in some way or other by religious sentiment and thereby rendered more impervious to change.

Man's capacity for evil makes democracy necessary and man's capacity for good makes democracy possible.

Better not read books in which you make acquaintance of the devil.

All known existence points beyond itself.

A genuine faith resolves the mystery of life by the mystery of God.

The mastery of nature is vainly believed to be an adequate substitute for self-mastery.

Original sin is that thing about man which makes him capable of conceiving of his own perfection and incapable of achieving it.