More quotes by Mark Twain

"Nothing exists but you. And you are but a thought."
"A man is never more truthful than when he acknowledges himself a liar."
"Herodotus says, "Very few things happen at the right time, and the rest do not happen at all: the conscientious historian will correct these defects."
"Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great."
"Name the greatest of all inventors. Accident."