Make sure that you don't live life on someone else's definition of success. Form your own definition of success, and thus, form your own definition of failure. And if you are to do that, that will be the best gift you can give yourself.

The tragedy of life is not death; the tragedy of life is what dies within while you're alive.

The US is a fantastic way to uncover your own self because here's what the US does: it offers you all the possible distractions that the world has to offer—literally everything. You have money; you have entertainment; you have gaming; you have food; you have porn; you literally have everything that you want at your disposal. And then it asks you, 'Are you able to navigate through all this distraction and still make it for yourself?'

You don't need a lot to be happy in life. We just keep buying shit because of our status and because [of] what we think the world will perceive of us. With my kids, the approach always is: We came from nothing, and if we have to go back to nothing, that's perfectly fine.

I think in the next 20 years, there are, in my opinion, the likelihood of these three things happening: we're definitely going to meet [an] intelligent life form outside of Earth, absolutely; number two: interplanetary travel and perhaps even settlement will become a reality; and number three: we will begin to have machines inside of us for virtually everything that we need.

I'm someone who loves questions but [doesn't] love answer ... I love asking questions. I love asking, 'Why? How? What? When? Whether? If?' But it's like this dog chasing a car. I am a dog chasing a car, and I have no plan what to do if the car stops; I'm just chasing the car.

It's possibly the most gratifying thing and, I'd say, the thing that I will be most proud of on my deathbed, which is, just the fact that I got to experience fatherhood.

I firmly believe that we're not the first human civilization to have lived on Earth. We're possibly the second or the third...

I think regret is the worst way to end your life ... It's unfortunate that so many wonderfully lead lives do end up in regret.