The basis of tragedy is man's helplessness against disease, war and death; the basis of comedy is man's helplessness against vanity (the vanity of love, greed, lust, power).
Bio: Daniel Joseph Boorstin was an American historian at the University of Chicago, writing on many topics in American history and world history. He was appointed twelfth Librarian of the United States Congress in 1975 and served until 1987.