"With me, poetry has been not a purpose, but a passion; and the passions should be held in reverence: they must not be profaned by a superficial interest."

"I do not suffer from insanity, I enjoy every minute of it."

"Believe nothing you hear, and only one half that you see."

"Invisible things are the only realities."

"In one case out of a hundred a point is excessively discussed because it is obscure; in the ninety-nine remaining it is obscure because it is excessively discussed."