Muhammad Ali

"Self-belief: I am the greatest, I said that even before I knew I was."

"I hated every minute of training, but I said, Don't quit. Suffer now and live the rest of your life as a champion."

"The man who has no imagination has no wings."

"Champions aren't made in gyms. Champions are made from something they have deep in them - a desire, a dream and a vision. They have to have the skill, and the will. But the will must be stronger than the skill."

"What keeps me going is goals."

"Champions aren't made in the gyms. Champions are made from something they have deep inside them, a desire, a dream and a vision."