Who said “Every thought derives from a thwarted sensation.”?

“I am as frustrated with society as a pyromaniac in a petrified forest.”

“I feel as if I were a piece in a game of chess, when my opponent says of it: That piece cannot be moved.”

“It is the awareness of unfulfilled desires which gives a nation the feeling that it has a mission and a destiny.”

“The torment of human frustration, whatever its immediate cause, is the knowledge that the self is in prison, its vital force and ''mangled mind'' leaking away in lonely, wasteful self-conflict.”

“It is misery, you know, unspeakable misery for the man who lives alone and who detests sordid, casual affairs; not old enough to do without women, but not young enough to be able to go and look for one without shame!”

“There is no means of proving it is preferable to be than not to be.”

“Consciousness is much more than the thorn, it is the dagger in the flesh.”

“The fact that life has no meaning is a reason to live --moreover, the only one.”

“Progress is the injustice each generation commits with regard to its predecessors.”

“It is not worth the bother of killing yourself, since you always kill yourself too late.”

“Criticism is a misconception: we must read not to understand others but to understand ourselves.”