If you have several ideas that all seem pretty good, work on the one that you think about, when you're not trying to think about work.

If someone is difficult to talk to, if someone cannot communicate clearly, it's a real problem in terms of their likelihood to work out.

One thing that often disrupts momentum and really shouldn't is competitors.

More important than starting any startup, is getting to know a lot of potential co-founders.

To get the very best people- they have a lot of great options, and so it can easily take a year to recruit someone.

Because so few people make an actual long term commitment to what they're building, the ones that do have a huge advantage.

In general don't start a startup you're not willing to work on for ten years.