Muhammad Ali

"Friendship is the hardest thing in the world to explain. It's not something you learn in school. But if you haven't learned the meaning of friendship, you really haven't learned anything."

"Life is a gamble. You can get hurt, but people die in plane crashes, lose their arms and legs in car accidents; people die every day. Same with fighters: some die, some get hurt, some go on. You just don't let yourself believe it will happen to you."

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

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

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

"You lose nothing when fighting for a cause ... In my mind the losers are those who don't have a cause they care about."

"Allah is the Greatest. I'm just the greatest boxer"

"Ali's got a left, Ali's got a right - when he knocks you down, you'll sleep for the night; and when you lie on the floor and the ref counts to ten, hope and pray that you never meet me again."

"He who is not courageous enough to take risks will accomplish nothing in life."

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

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

"Friendship... is not something you learn in school. But if you haven't learned the meaning of friendship, you really haven't learned anything."