More quotes by Mark Twain

"Humor must not professedly teach and it must not professedly preach, but it must do both if it would live forever."
"Under certain circumstances, profanity provides a relief denied even to prayer."[Mark Twain, a Biography]"
"Nothing exists but you. And you are but a thought."
"I must have a prodigious amount of mind; it takes me as much as a week, sometimes, to make it up!"
"I was gratified to be able to answer promptly, and I did. I said I didn’t know."