A recession is very bad for publicly traded companies, but it's the best time for startups. When you have massive layoffs, there's more competition for available jobs, which means that an entrepreneur can hire freelancers at a lower cost.

But you are the average of the five people you associate with most, so do not underestimate the effects of your pessimistic, unambitious, or disorganized friends. If someone isn't making you stronger, they're making you weaker.

You don't have to travel, but I find extended travel to be a helpful tool for reexamining yourself and the constraints you've artificially placed on your life. It's easy to believe everything has to be done one way if you're always in one place around the same people.

Never check email first thing in the morning. Instead, complete your most important task before 11:00 A.M. to avoid using lunch or reading email as a postponement excuse.

If everyone is defining a problem or solving it one way and the results are subpar, this is the time to ask, What if I did the opposite? Don't follow a model that doesn't work. If the recipe sucks, it doesn't matter how good a cook you are.

In a digital world, there are numerous technologies that we are attached to that create infinite interruption.

If you don't have time, the truth is, you don't have priorities. Think harder; don't work harder.