Mark Twain

Mark Twain (Samuel Langhorne Clemens, author): Reported to have said, "Giving up smoking is easy. I've done it hundreds of times." A favorite quote of the tobacco side, to indicate the public has known for many decades that smoking is addictive.

Books

 * Jerome Loving, Mark Twain: The Adventures of Samuel L. Clemens (University of California Press, 2010). Mentioned by Jonah Raskin. also see

Related Sourcewatch

 * Helen Keller
 * Henry Huttleston Rogers
 * Joseph Hopkins Twichell