Man only likes to count his troubles, but he does not count his joys.

God is necessary, and therefore must exist...But I know that he does not and cannot exist...Don't you understand that a man with these two thoughts cannot go on living?

Deprived of meaningful work, men and women lose their reason for existence; they go stark, raving mad.

in the newspapers I read a biography about an American. He left his whole huge fortune to factories and for the positive sciences, his skeleton to the students at the academy there, and his skin to make a drum so as to have the American national anthem drummed on it day and night.

My God, but what do I care about the laws of nature and arithmatic if for some reason these laws and two times two is four are not to my liking?

Man has not the right to turn aside and heed not what is happening in the world around him, and this I maintain on moral grounds of the highest order.

There were moments when I hated everybody I came across, innocent or guilty, and looked at them as thieves who were robbing me of my life with impunity. The most unbearable misfortune is when you yourself become unjust, malignant, vile; you realize it, you even reproach yourself - but you just can't help it.