Who said “Learning carries within itself certain dangers because out of necessity one has to learn…”?

“With just enough of learning to misquote.”

“Have you ever seen a pedant with a warm heart?”

“We learn geology the morning after the earthquake.”

“Erudition can produce foliage without bearing fruit.”

“Learning isn't a means to an end; it is an end in itself.”

“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.”

“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.”

“Life is not an easy matter. You cannot live through it without falling into frustration and cynicism unless you have before you a great idea which raises you above personal misery, above weakness, above all kinds of perfidy and baseness.”

“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.”