Who said “Life is not an easy matter. You cannot live through it without falling into frustration…”?

“Truth never damages a cause that is just.”

“Perhaps misguided moral passion is better than confused indifference.”

“We are all ready to be savage in some cause. The difference between a good man and a bad one is the choice of the cause.”

“The history of progress is written in the blood of men and women who have dared to espouse an unpopular cause, as, for instance, the black man's right to his body, or woman's right to her soul.”

“A good cause can become bad if we fight for it with means that are indiscriminately murderous. A bad cause can become good if enough people fight for it in a spirit of comradeship and self-sacrifice. In the end it is how you fight, as much as why you fight, that makes your cause good or bad.”

“Fascism is nothing but capitalist reaction.”

“Old age is the most unexpected of all the things that happen to a man.”

“In a serious struggle there is no worse cruelty than to be magnanimous at an inopportune time.”

“Learning carries within itself certain dangers because out of necessity one has to learn from one's enemies.”

“The historic ascent of humanity, taken as a whole, may be summarized as a succession of victories of consciousness over blind forces -- in nature, in society, in man himself.”

“Let a man find himself, in distinction from others, on top of two wheels with a chain -- at least in a poor country like Russia -- and his vanity begins to swell out like his tires. In America it takes an automobile to produce this effect.”