“If they can make penicillin out of moldy bread, then they can sure make something out of you.”

I had it in my heart. I believed in myself, and I had confidence. I knew how to do it, had natural talent and I pursued it.

Tolerance and understanding won’t ‘trickle down’ in our society any more than wealth does.

Allah is the Greatest. I’m just the greatest boxer.

It’s just a job. Grass grows, birds fly, waves pound the sand. I beat people up.

How many push ups do you do? I don’t know. I only starts counting when it starts hurting.

Float like a butterfly, sting like a bee.

The sun is always shining someplace.

Rest but never quit. Even the sun has a sinking spell each evening. But it always rises the next morning. At sunrise, every soul is born again.

I was the first one in the gym, and the last one to leave.

There comes a time in every person’s life when he has to choose the course his life will take.

If my mind can conceive it, and my heart can believe it – then I can achieve it.

There are billions of people in the world, and every one of them is special. No one else in the world is like you.

I’ll beat him so bad he’ll need a shoehorn to put his hat on.

My toughest fight was with my first wife.

Success is not achieved by winning all the time. Real success comes when we rise after we fall.

It’s hard to be humble when you’re as great as I am.