"All the world's a stage, and all the men and women merely players: they have their exits and their entrances; and one man in his time plays many parts, his act

"All the world's a stage, and all the men and women merely players: they have their exits and their entrances; and one man in his time plays many parts, his acts being seven ages. " William Shakespeare Full reference here: http://en.wikipedia.org/wiki/All_the_world%27s_a_stage http://en.wikipedia.org/wiki/All_the_world%27s_a_stage