More quotes by Mark Twain

"One should never use exclamation points in writing. It is like laughing at your own joke."
"The secret to getting ahead is getting started."
"Under certain circumstances, profanity provides a relief denied even to prayer."[Mark Twain, a Biography]"
"A successful book is not made of what is in it, but what is left out of it."
"A man is never more truthful than when he acknowledges himself a liar."