Be suspicious of any work that is not building product or getting customers. It's easy to get sucked into an infrastructure rewrite death spiral.

We hear again and again from founders, that they wish they had waited to start a startup until they came up with an idea they really loved.

You certainly don't need to have everything figured out in the path from here to world domination.

I really believe that the single hardest thing in business is building a company that does repeatable innovation... and just has this ongoing culture of excellence as it grows.

Stay focused and don't try to do too many things at once. Care about execution quality.

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

Another way of looking at this, is that the best companies are almost always mission oriented.