Your only obligation in any lifetime is to be true to yourself. Being true to anyone else or anything else is not only impossible, but the mark of a fake messiah.

Richard Bach

Richard David Bach (born 23 June 1936) is an American writer. He is widely known as the author of the hugely popular 1970s best-sellers Jonathan Livingston Seagull, Illusions: The Adventures of a Reluctant Messiah, and others. His books espouse his philosophy that our apparent physical limits and mortality are merely appearance. He claims to be a direct descendant of Johann Sebastian Bach. He is noted for his love of flying and for his books related to air flight and flying in a metaphorical context. He had pursued flying as a hobby since the age of 17.

http://en.wikipedia.org/wiki/Richard_Bach