More quotes by Mark Twain

"A successful book is not made of what is in it, but what is left out of it."
"Education: that which reveals to the wise, and conceals from the stupid, the vast limits of their knowledge."
"God created war so that Americans would learn geography."
"All you need in this life is ignorance and confidence; then success is sure."
"Reader, suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself."