Muhammad Ali, RIP.

A man who has no imagination has no wings.

A man who views the world the same at 50 as he did at 20 has wasted 30 years of his life.

At home I am a nice guy: but I don’t want the world to know. Humble people, I’ve found, don’t get very far.

Braggin' is when a person says something and can’t do it. I do what I say.

Don’t count the days; make the days count.

Float like a butterfly, sting like a bee. His hands can't hit what his eyes can't see. Now you see me, now you don't. George thinks he will, but I know he won't.

Hating people because of their color is wrong. And it doesn't matter which color does the hating. It's just plain wrong.

He’s (Sonny Liston) too ugly to be the world champ. The world champ should be pretty like me!

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

I am the astronaut of boxing. Joe Louis and Dempsey were just jet pilots. I'm in a world of my own.

I am the greatest, I said that even before I knew I was.

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

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

If you even dream of beating me you'd better wake up and apologize

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’m not the greatest, I’m the double greatest.

Impossible is just a big word thrown around by small men who find it easier to live in the world they’ve been given than to explore the power they have to change it. Impossible is not a fact. It’s an opinion. Impossible is not a declaration. It’s a dare. Impossible is potential. Impossible is temporary. Impossible is nothing.

I'm so mean, I make medicine sick.

I'm the most recognized and loved man that ever lived cuz there weren't no satellites when Jesus and Moses were around, so people far away in the villages didn't know about them.

I'm young; I'm handsome; I'm fast. I can't possibly be beat.

I shook up the world. Me! Whee!

I should be a postage stamp. That's the only way I'll ever get licked.

It isn’t the mountains ahead to climb that wear you out; it’s the pebble in your shoe.

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

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

It’s not bragging if you can back it up.

I’ve wrestled with alligators. I’ve tussled with a whale. I done handcuffed lightning. And throw thunder in jail.

Live everyday as if it were your last because someday you're going to be right.

Only a man who knows what it is like to be defeated can reach down to the bottom of his soul and come up with the extra ounce of power it takes to win when the match is even.

Service to others is the rent you pay for your room here on earth.