“You can’t crush ideas by suppressing them. You can only crush them by ignoring them. By refusing to think, refusing to change.”

“There is nothing you can do that profit does not enter into, and fear of loss, and wish for power. You cannot say good morning without knowing which of you is 'superior' to the other, or trying to prove it. You cannot act like a brother to other people, you must manipulate them, or command them, or obey them, or trick them. You cannot touch another person, yet they will not leave you alone. There is no freedom.”

“The trouble is that we have a bad habit, encouraged by pedants and sophisticates, of considering happiness as something rather stupid. Only pain is intellectual, only evil interesting. This is the treason of the artist: a refusal to admit the banality of evil and the terrible boredom of pain. If you can’t lick ‘em, join ‘em. If it hurts, repeat it. But to praise despair is to condemn delight, to embrace violence is to lose hold of everything else. We have almost lost hold; we can no longer describe a happy man, nor make any celebration of joy.”

“I doubt that the imagination can be suppressed. If you truly eradicated it in a child, he would grow up to be an eggplant.”

“...[T]he only means I have to stop ignorant snobs from behaving towards genre fiction with snobbish ignorance is to not reinforce their ignorance and snobbery by lying and saying that when I write SF it isn't SF, but to tell them more or less patiently for forty or fifty years that they are wrong to exclude SF and fantasy from literature, and proving my arguments by writing well.”

“This is the treason of the artist: a refusal to admit the banality of evil and the terrible boredom of pain.”

“There is not much you can say about a baby unless you are talking with its father or another mother or nurse; infants are not part of the realm of ordinary language, talk is inadequate to them as they are inadequate to talk.”