“Most people are resistant to ideas, especially new ones. But they are fascinated by character. Extravagance of personality is one way in which the pill can be sugared and the public induced to look at works dealing with ideas.”

“There is something at the bottom of every new human thought, every thought of genius, or even every earnest thought that springs up in any brain, which can never be communicated to others, even if one were to write volumes about it and were explaining one's idea for thirty-five years; there's something left which cannot be induced to emerge from your brain, and remains with you forever; and with it you will die, without communicating to anyone perhaps the most important of your ideas.”

“One thing has always been true: That book or that person who can give me an idea or a new slant on an old idea is my friend.”

“One resists the invasion of armies; one does not resist the invasion of ideas.”

“But I'll add, that there is something at the bottom of every new human thought, every thought of genius, or even every earnest thought that springs up in any brain, which can never be communicated to others, even if one were to write volumes about it and were explaining one's idea for thirty-five years; there's something left which cannot be induced to emerge from your brain, and remains with you forever; and with it you will die, without communicating to anyone perhaps the most important of your ideas”

“Character assassination. What a wonderful idea. Ordinary assassination only works once, but this one works every day.”