You should be innovating so fast that you're invalidating your prior patents.

Optimism, pessimism, f**k that; we're going to make it happen. As God is my bloody witness, I'm hell-bent on making it work.

You shouldn't do things differently just because they're different. They need to be... better.

For my part, I will never give up, and I mean never.

Patience is a virtue, and I'm learning patience. It's a tough lesson.

As a child I would just question things.

Humans need to be a multiplanet species.

The key test for an acronym is to ask whether it helps or hurts communication.

I do love email. Wherever possible I try to communicate asynchronously. I'm really good at email.

The extension of life beyond Earth is the most important thing we can do as a species.

We need to be super careful with AI. Potentially more dangerous than nukes.

I don't create companies for the sake of creating companies, but to get things done.

There's a tremendous bias against taking risks. Everyone is trying to optimize their ass-covering.

It's OK to have your eggs in one basket as long as you control what happens to that basket.

The fuel cell is just a fundamentally inferior way of delivering electrical energy to an electric motor than batteries.

It is better to offer no excuse than a bad one.

If freedom of speech is taken away, then dumb and silent we may be led, like sheep to the slaughter.

It is better to be alone than in bad company.

My mother was the most beautiful woman I ever saw. All I am I owe to my mother. I attribute my success in life to the moral, intellectual and physical education I received from her.