The secret source of humor is not Posted on June 29, 2014June 29, 2009 by admin “The secret source of humor is not joy but sorrow; there is no humor in Heaven.” — Mark Twain Author: Mark Twain Category: humor Tags: humor, Mark Twain Spread the love Related posts: Everything human is pathetic. The secret source Humor must not professedly teach and it Common sense and a sense of humor A well-developed sense of humor is the