Before you develop a conscience, torture is amusing. - Paul Graham

In business, there is nothing more valuable than a technical advantage your competitors don’t understand. In business, as in war, surprise is worth as much as force.

I've been doing office hours with startups for 20 years now. I must have talked to over a thousand of them. How have I not become bored by it? I think the reason is curiosity. Each startup's idea is different, and it's a puzzle to figure out how to make it work.

don't feel like you're doomed to fail if you're not sure on day 1 that you want to be running a public company. Not being sure of that is if anything a sign of sanity.