More quotes by Mark Twain

"Humor is mankind's greatest blessing."
"I've had a lot of worries in my life, most of which never happened."
"The trouble is not in dying for a friend, but in finding a friend worth dying for."
"Lord save us all from old age and broken health and a hope tree that has lost the faculty of putting out blossoms."
"A clear conscience is the sure sign of a bad memory."