Kipling's If. You might not want this because it ends: "If you can keep your head......You'll be a man, my son."(posted 9306 days ago)Markam"s (?) The Circle. "Heretic, rebel a thing to flout/he drew a ciclr that shut me out/Love and I had the wit to win/we drew a circle that shut him in."
's "I am the master of my fate/I am the captain of my soul"