Never give up, which is the lesson I learned from boxing. As soon as you learn to never give up, you have to learn the power and wisdom of unconditional surrender, and that one doesn’t cancel out the other; they just exist as contradictions. The wisdom of it comes as you get older.
Growth demands a temporary surrender of security.
Let the winds of evidence blow you about as though you are a leaf, with no direction of your own. Beware lest you fight a rearguard retreat against the evidence, grudgingly conceding each foot of ground only when forced, feeling cheated. Surrender to the truth as quickly as you can.
No man is great enough or wise enough for any of us to surrender our destiny to. The only way in which anyone can lead us is to restore to us the belief in our own guidance.