Who said “In societies where modern conditions of production prevail, all of life presents itself…”?

“This strange disease of modern life, with its sick hurry, its divided aims.”

“Postmodernism is among other things a sick joke at the expense of revolutionary avant-gardism.”

“Don't bother about being modern. Unfortunately it is the one thing that, whatever you do, you cannot avoid.”

“Even in a time of elephantine vanity and greed, one never has to look far to see the campfires of gentle people.”

“A multitude of causes unknown to former times are now acting with a combined force to blunt the discriminating powers of the mind, and unfitting it for all voluntary exertion to reduce it to a state of almost savage torpor.”

“Boredom is always counter-revolutionary. Always.”

“Quotations are useful in periods of ignorance or obscurantist beliefs.”

“Tourism, human circulation considered as consumption is fundamentally nothing more than the leisure of going to see what has become banal.”

“Art need no longer be an account of past sensations. It can become the direct organization of more highly evolved sensations. It is a question of producing ourselves, not things that enslave us.”

“There is nothing more natural than to consider everything as starting from oneself, chosen as the center of the world; one finds oneself thus capable of condemning the world without even wanting to hear its deceitful chatter.”

“Ideas improve. The meaning of words participates in the improvement. Plagiarism is necessary. Progress implies it. It embraces an author's phrase, makes use of his expressions, erases a false idea, and replaces it with the right idea.”