I was frustrated as a child when I had to use a vacuum. It had a screaming noise and the smell of stale dog and a lack of performance.

I made 5,127 prototypes of my vaccum before I got it right. There were 5,126 failures. But I learned from each one. That’s how I came up with a solution. So I don’t mind failure.

What I've learned from running is that the time to push hard is when you're hurting like crazy and you want to give up. Success is often just around the corner.

Enjoy failure and learn from it. You never learn from success.

Everyone gets knocked back, no one rises smoothly to the top without hindrance. The ones who succeed are those who say, right, let’s give it another go.

Successes teach you nothing. Failures teach you everything. Making mistakes is the most important thing you can do.

Everyone has ideas. They may be too busy or lack the confidence or technical ability to carry them out. But I want to carry them out. It is a matter of getting up and doing it.

In order to fix it, you need a passionate anger about something that doesn't work well.

Engineering undergraduates should not be charged fees. They should receive grants, not student loans, and the government will get the money back long-term from increased exports.

If you want to do something different, you’re going to come up against a lot of naysayers.

Children want the challenge of difficult tasks - just look how much better they are than their parents on a computer.

There is a spirit and a need and a man at the beginning of every great human advance. Every one of these must be right for that particular moment in history or nothing happens.

The artist says to the cosmos: All I ask is infinite love-is that so very wrong? And the cosmos doesn't even bother to respond.

I'm more interested in the future than in the past, because the future is where I intend to live.

The monk that invented gunpowder did as much to stop war as did all the sermons of his brethren.

A book is a garden, a party, a company by the way.

Terrorists cut people's heads off and that's what they do in the Planned Parenthood clinics.

The fruits of labor are delicious, but individually they’re not particularly fattening. So don’t share yours, and munch on those of others whenever you can.

Failure defeats losers, failure inspires winners.

I don't suppose God laughs at the people who think He doesn't exist. He's above jokes. But the devil isn't. That's one of his most endearing qualities.

You can't expect yourself to be already peaking like crazy in an exhibition tournament.