"Love is composed of a single soul inhabiting two bodies."

"Death is the wish of some, the relief of many, and the end of all."

"An idea, to be suggestive, must come to the individual with the force of revelation."

"Ah! yes, I know: those who see me rarely trust my word: I must look too intelligent to keep it."

"I’m not interested in preserving the status quo; I want to overthrow it."

"Ability will never catch up with the demand for it."

"Every heart sings a song, incomplete, until another heart whispers back. Those who wish to sing always find a song. At the touch of love, every man becomes a poet."

"They can because they think they can."

"For my part, when I enter most intimately into what I call myself, I always stumble on some particular perception or other, of heat or cold, light or shade, love or hatred, pain or pleasure. I never can catch myself at any time without a perception, and never can observe any thing but the perception…. If any one, upon serious and unprejudic’d reflection thinks he has a different notion of himself, I must confess I can reason no longer with him. All I can allow him is, that he may be in the right as well as I, and that we are essentially different in this particular. He may, perhaps, perceive something simple and continu’d, which he calls himself; tho’ I am certain there is no such principle in me"

"Be careful when you fight the monsters, lest you become one."