A great man is one that can develop convictions in solitude and carry them out in a crowd.

During the first period of a man's life the greatest danger is not to take the risk.

It belongs to the imperfection of everything human that man can only attain his desire by passing through its opposite.

A man who as a physical being is always turned toward the outside, thinking that his happiness lies outside him, finally turns inward and discovers that the source is within him.

Listen to the cry of a woman in labor at the hour of giving birth - look at the dying man's struggle at his last extremity, and then tell me whether something that begins and ends thus could be intended for enjoyment.

It was completely fruitless to quarrel with the world, whereas the quarrel with oneself was occasionally fruitful and always, she had to admit, interesting.