"Man is made to believe, and to be deceived."

"A man should hear a little music, read a little poetry, and see a fine picture every day of his life, in order that worldly cares may not obliterate the sense of the beautiful which God has implanted …"

"The truly wise man is he who knows that he knows nothing."

"If you treat an individual as he is, he will remain as he is. But if you treat him as if he were what he ought to be and could be, he will become what he ought to be and could be."

"The human being is an abyss."