We know what we are, but know not what we may be.
William Shakespeare
We don't know who we are until we see what we can do.
Martha Grimes
I care not so much what I am to others as what I am to myself.
Michel Eyquem De Montaigne
Success is not the result of a spontaneous combustion. You must first set yourself on fire.
Fred Shero
I must be the author of my own salvation.
Laurie H. Huster from Invictus (speech from Johannus to Nicholas, Act III)