Global warming is one of those things, not like an earthquake where there's a big bang and you say, 'Oh, my God, this is really, has hit us.' It creeps up on you. ... Half a degree temperature difference from one year to the next, a little bit of rise of the ocean, a little bit of melting of the glaciers, and then all of a sudden it is too late to do something about it.

Mentally it is possible to break records, once you understand that, you can do anything.

The last three or four reps is what makes the muscle grow. This area of pain divides the champion from someone else who is not a champion. That's what most people lack, having the guts to go on and just say they'll go through the pain no matter what happens.

Confidence comes from victory, but strength comes from the struggle.

I am what I am - which is I have aged.

I was also going to give a graduation speech in Arizona this weekend. But with my accent, I was afraid they would try to deport me.

Don't be afraid to fail. Anything that I've ever attempted I was always willing to fail. You can't always win, but don't be afraid of making decisions.