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.

Most investors are obsessed with the market size today and they don't think about how the market is going to evolve.

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

You want to continue to be run by great products, not process for it's own sake.

You also really want to take the time to think about how the market is going to evolve.You need a market that's going to be big in 10 years.

If you don't need it yourself, and you're building something that someone else needs, realize you're at a big disadvantage.

The single word that matters most I think to keep the company productive as it grows is alignment.