Only stupid questions create wealth.

A noble purpose inspires sacrifice, stimulates innovation and encourages perseverance.

One doesn't have to be a Marxist to be awed by the scale and success of early-20th-cent ury efforts to transform strong-willed human beings into docile employees.

You can't use an old map to see a new land.

The goal is not to speculate on what might happen, but to imagine what you can make happen.

Out there in some garage is an entrepreneur who's forging a bullet with your company's name on it. You've got one option now - to shoot first. You've got to out innovate the innovators.

We owe our existence to innovation. Our species exists thanks to four billion years of genetic innovation.

There's a simple, but oft-neglected lesson here: to sustain success, you have to be willing to abandon things that are no longer successful.

We've reached the end of incrementalism. Only those companies that are capable of creating industry revolutions will prosper in the new economy.

Innovation is the fuel for growth. When a company runs out of innovation, it runs out of growth.

Management innovation is going to be the most enduring source of competitive advantage. There will be lots of rewards for firms in the vanguard.

If it is necessary sometimes to lie to others, it is always despicable to lie to oneself.

You can ignore your heart and mind, but it will always find its way home.

It is not death that a man should fear he should fear never beginning to live.

I could never give relationship advice to anybody!

It's pretty awful being told you're a racist.

...the power-loving temperament is more dangerous when it either prefers or is forced to operate in what is materially a void. Wehave everything to dread from the dispossessed.

You want to have butterflies in your stomach, because if you don't, if you walk out onstage complacent, that's not a good thing.

In this time of challenge, I am asking the prime minister to address Congress on the grave threats radical Islam and Iran pose to our security and way of life.

I require and enforce as non-interrupted a state of living as you can get in America right now without going off to live by yourself in the mountains.

Our Constitution recognises no other power than that of persuasion, for enforcing religious observances.