More quotes by Mark Twain

"The secret to getting ahead is getting started."
"Humor must not professedly teach and it must not professedly preach, but it must do both if it would live forever."
"All you need in this life is ignorance and confidence, and then success is sure."
"One should never use exclamation points in writing. It is like laughing at your own joke."
"Sanity and happiness are an impossible combination."