Talking nonsense the sole privilege mankind possesses over the other organisms. It's by talking nonsense that one gets to the truth! I talk nonsense, therefore I am human. Not one single truth has ever been arrived at without people first having talked a dozen reams of nonsense, even ten dozen reams of it, and that's an honourable thing in its own way; well, but we can't even talk nonsense with our own brains! Talk nonsense to me, by all means, but do it with your own brain, and I shall love you for it. To talk nonsense in one's own way is almost better than to talk a truth that's someone else's; in the first instance you behave like a human being, while in the second you are merely being a parrot!

Razumikhin, in Crime and Punishment