I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion.
Gold medals aren't really made of gold. They're made of sweat, determination, and a hard-to-find alloy called guts.
Where there is no struggle, there is no strength.
Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.
A creative man is motivated by the desire to achieve, not by the desire to beat others.
It isn't the mountains ahead to climb that wear you out; it's the pebble in your shoe.
I am the greatest, I said that even before I knew I was.
Physical fitness is not only one of the most important keys to a healthy body, it is the basis of dynamic and creative intellectual activity.
Be yourself, everyone else is already taken
If you even dream of beating me you'd better wake up and apologise.
In order to succeed, your desire for success should be greater than your fear of failure.
It had long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things.
Surround yourself with only people who are going to lift you higher.