The best ideas often look terrible at the beginning the truly good ideas, don't seem like they're worth stealing.

Be suspicious of any work that is not building product or getting customers.

I myself used to believe ideas didn't matter that much, but I'm very sure that's wrong now.

Once your product is working, switch from not caring about this to caring about this a little bit.

Good startups usually take 10 years.

You should always know how you're doing against your metrics. You should always have a weekly review meeting every week.

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