Every writer has certain subjects that they write about again and again, and . . . most people's books are just variations on certain themes.
Source: In W.O.W. - Writers on Writing, by Jon Winokur, 1990.
-- Christopher Isherwood, (Aug 26 1904-1986), US author, dramatist; His stories Goodbye to Berlin, 1935 became the basis of the play Cabaret, 1966.