All human evil comes from a single cause, man's inability to sit still in a room.

Faith is different from proof; the latter is human, the former is a Gift from God.

What a vast difference there is between knowing God and loving Him.

Happiness can be found neither in ourselves nor in external things, but in God and in ourselves as united to him.

I have made this letter longer than usual, only because I have not had the time to make it shorter.

Christian piety annihilates the egoism of the heart; worldly politeness veils and represses it.

Dull minds are never either intuitive or mathematical.