I don't buy stocks, I make stocks.

To get something new done you have to be stubborn and focused, to the point that others might find unreasonable.

I strongly believe that missionaries make better products. They care more. For a missionary, it's not just about the business. There has to be a business, and the business has to make sense, but that's not why you do it. You do it because you have something meaningful that motivates you.

Mediocre theoretical physicists make no progress. They spend all their time understanding other people's progress.

We are pioneers and the history of pioneers is not that good.

Good ideas will always get funded, so that's not going to be a problem. But you will see that it will be harder and harder for bad ideas to get funded.

If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.