I find the fact that billionaires are quoted as if the fact that they are billionaires gives them some kind of wisdom is outrageous.
I know I was a great friend to Tiger Woods. But when you have a relationship that's involves business and friendship - and the business part comes to an end - things always get a little blurry.
You must accept that you might fail; then, if you do your best and still don't win, at least you can be satisfied that you've tried. If you don't accept failure as a possibility, you don't set high goals, you don't branch out, you don't try - you don't take the risk.