I am a sick man...I am a spiteful man. I am an unattractive man. I think my liver is diseased. Then again, I don't know a thing about my illness; I'm not even sure what hurts.

Man, do not pride yourself on your superiority to the animals, for they are without sin, while you, with all your greatness, you defile the earth wherever you appear and leave an ignoble trail behind you -- and that is true, alas, for almost every one of us!

To study the meaning of man and of life — I am making significant progress here. I have faith in myself. Man is a mystery: if you spend your entire life trying to puzzle it out, then do not say that you have wasted your time. I occupy myself with this mystery, because I want to be a man.

A new philosophy, a new way of life, is not given for nothing. It has to be paid dearly for and only acquired with much patience and great effort

Love the animals. God has given them the rudiments of thought and joy untroubled. Don't trouble it, don't harass them, don't deprive them of their happiness, don't work against God's intent.

Existence alone had never been enough for him; he had always wanted more. Perhaps it was only from the force of his desires that he had regarded himself as a man to whom more was permitted than to others.

A man would still do something out of sheer perversity - he would create destruction and chaos - just to gain his point...and if all this could in turn be analyzed and prevented by predicting that it would occur, then man would deliberately go mad to prove his point.