You get ideas all the time. The only difference between writers and other people is we notice when we're doing it.

“Now go and make interesting mistakes, make amazing mistakes, make glorious and …”

“That's the joy of a harlequinade, after all, isn't it? We change our costumes. …”

“She was beautiful, but she was beautiful in the way a forest fire was beautiful.”

“And weren't, when you got right down to it, particularly evil. Human beings mos…”