What are your favorite obscure quotes?

Asked by Fly (8726) September 8th, 2013 from iPhone

We’ve all heard the cliché inspirational quotes, but I tend to think that the best quotes are the ones that aren’t as well known. My personal favorite comes from Voltaire, and it is essentially my outlook on life: “Doubt is not a pleasant condition, but certainty is absurd.”
What are your favorite lesser-known quotes?