In the '30s, the Keynesian stuff worked at least in the sense that you could print money without inflation because there was all this productivity growth happening. That's not going to work today.

The most contrarian thing of all is not to oppose the crowd but to think for yourself.

I think we have a bubble in the US in government bonds, because of the quantitative easing and the negative real interest rates, and to some extent, that increases asset values across the board, including in startups.

Everybody has a product to sell—no matter whether you’re an employee, a founder, or an investor. It’s true even if your company consists of just you and your computer. Look around. If you don’t see any salespeople, you’re the salesperson.

As an investor-entrepreneur, I’ve always tried to be contrarian, to go against the crowd, to identify opportunities in places where people are not looking.

Beginning with brand rather than substance is dangerous.

Anti-aging is an extremely under-explored field.