Many times through the ages, like as not the chance appears, but because of indecision, man's fond hopes are drowned in tears.

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.

Doubt … is an illness that comes from knowledge and leads to madness.

When an invading force crosses a river in its onward march, do not advance to meet it in mid-stream.  It will be best to let half the army get across, and then deliver your attack.

Lying in small doses makes a good storyteller great.

Mars has a bit of air pressure; maybe we can build up that atmosphere to be a bit more accommodating to humans.

Passwords are like underwear: you don’t let people see it, you should change it very often, and you shouldn’t share it with strangers.

To live is often only to have a choice of several despairs.

I need to travel - I crave the power of the ocean and the trees give me so much energy to think.

Life is better when we imagine it

Black is now in desperate need of a good idea. Or, to put it standard chess notation, +-

Find your confidence, lead with love... the rest will follow.