Who said “If you are possessed by an idea, you find it expressed everywhere, you even smell it.”?

“Ideas too are a life and a world.”

“It is ideas, not vested interests, which are dangerous for good or evil.”

“All achievement, all earned riches, have their beginning in an idea! p.18”

“An idea that is not dangerous is not worthy of being called an idea at all.”

“Ideas are refined and multiplied in the commerce of minds. In their splendor, images effect a very simple communion of souls.”

“Extraordinary creature! So close a friend, and yet so remote.”

“Opinions cannot survive if one has no chance to fight for them.”

“The only religious way to think of death is as part and parcel of life.”

“Human reason needs only to will more strongly than fate, and she is fate.”

“There is something suspicious about music, gentlemen. I insist that she is, by her nature, equivocal. I shall not be going too far in saying at once that she is politically suspect.”

“An art whose medium is language will always show a high degree of critical creativeness, for speech is itself a critique of life: it names, it characterizes, it passes judgment, in that it creates.”