To achieve perfection, one must first begin by not understanding many things! And if we understand too quickly, we may not understand well.

The enemies of living life; outdated little liberals, afraid of their own independence; lackeys of thought, enemies of the person and freedom, decrepit preachers of carrion and rot! What do they have: gray heads, the golden mean, the most abject and philistine giftlessness, envious equality, equality without personal dignity, equality as understood by a lackey or a Frenchman of the year ninety-three...And scoundrells, above all, scoundrels, scoundrels everywhere!

For broad understanding and deep feeling, you need pain and suffering.

Two and two make four. Nature doesn't ask your advice. She isn't interested in your preferences or whether or not you approve of her laws. You must accept nature as she is with all the consequences that that implies.

There is nothing more alluring to man than freedom of conscience, but neither is there anything more agonizing.

The most pressing question on the problem of faith is whether a man as a civilized being can believe in the divinity of the Son of God, Jesus Christ, for therein rests the whole of our faith.

You must accept it as it is, and hence accept all consequences. A wall is indeed a wall.