For reference, I like Notre Dame's "Play like a champion today" (though I would edit it into "Be a champion today," and I dislike Kipling's quote at Wimbledon, "If you can treat triumph and disaster the same," as it reeks of complacency and post-game, post-match speeches that start with, "Well, I did my best..." to which I would respond, so your best is being a loser. 

The great ones will only accept triumph, deem disaster unacceptable, figure out why they lost and vow not to lose again. 

Would be interested in checking stats on all players who beat Nicklaus head-to-head twice or more. Bet it's a short list.