If I only had a little humility I'd be perfect.

You can never quit. Winners never quit, and quitters never win.

Every few seconds it changes - up an eighth, down an eighth - it's like playing a slot machine. I lose $20 million, I gain $20 million.

There's nothing wrong with being fired.

If you treat people with dignity, respect and friendliness, you can turn enemies into friends. An enemy is nothing but a friend in disguise.

Life is a game. Money is how we keep score.

You should set goals beyond your reach so you always have something to live for.

To be happy in this world, first you need a cell phone and then you need an airplane. Then you're truly wireless.

My son is now an 'entrepreneur.' That's what you're called when you don't have a job.

I'm no genius. I'm not at all; I just happen to look five or 10 years ahead and think things through.

It's going to cost trillions of dollars to rework the energy sources all over the world. Were going to have to move away from fossil fuels.

I always return from my travels with new books.

I never make studies from nature. They would get in the way. I make use of my mind.

I don't like to generalize, but if you see a guy with his shirt tucked into his shorts, he's probably killed three or four children.

Educating people beyond their intellectual means is a disservice to humanity. A clueless person who knows little is a nuisance; a clueless person who knows a lot is a menace.

In this world, the spots where the present seems to overlap the past are the most important. These are the points when one becomes aware that the direction of the world can change.

A winemaker never, never changes the character of a wine. The character comes from the grapes.

How will you go about finding that thing the nature of which is totally unknown to you?

Companies rarely die from moving too fast, and they frequently die from moving too slowly.

Whatever I lack in talent I have in stamina.

As the race for president tightens, Hillary Clinton's campaign hopes to win over millions of people who voted for Bernie Sanders in the primaries.