Anger is a good motivator.

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.

Keep your mind free and independent even when someone wants to imprison your body.

Please Tommy. Please.

Investing for the poor requires participation from the entire community.

Idleness is the stupidity of the body, and stupidity is the idleness of the mind.

Dimitri was on a first name basis with one of the most badass guardians around. Of course, Dimitri was pretty badass himself, so I shouldn’t have been surprised.

It's a big jump from smart to motherwit.

Being a geek is all about being honest about what you enjoy.

No educated man can afford to be ignorant of the Bible.

Feminists have confused opportunity with outcome.

Working out is my biggest hobby. It's my Zen hour. I just zone out.