Two other things that we hear again and again from our founders, they wish they had done earlier, and that is... simply writing down how you do things and why you do things.

One thing that founders always underestimate is how hard it is to recruit.

What being a founder means, is signing up for this years long grind on execution - and you can't outsource this.

Great execution towards a terrible idea will get you nowhere.

It's better to have a few users love your product than for a lot of users to sort of like it.

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

In YC's case, the number one cause of early death for startups is cofounder blowups.