Great execution is at least 10 times more important and a 100 times harder than a good idea.

If you compromise and hire someone mediocre you will always regret it.

You should think about for the next 10 years, you're going to be giving out 3-5% of the company every year.

If someone is choosing between joining McKinsey or your startup it's very unlikely they're going to work out at the startup.

Most good founders that I know at any given time have a set of small overarching goals for the company that everybody in the company knows.

At YC we have this public phrase, and it's relentlessly resourceful.

It's better to have no cofounder than to have a bad cofounder, but it's still bad to be a solo founder.