Uncertainty and the prospect of failure can be very scary noises in the shadows. Most people will choose unhappiness over uncertainty.

Focus on being productive instead of busy.

Different is better when it is more effective or more fun.

I'm not averse to making a lot of money. But where does that end? I hang out with people with hundreds of millions of dollars. Is that the standard by which I should measure myself? Where does that take you if you're in my business? I think it takes you to pretty dark, corrupt places.

For most people, life would be boring without meaningful work.

Role models who push us to exceed our limits, physical training that removes our spare tires, and risks that expand our sphere of comfortable action are all examples of eustress—stress that is healthful and the stimulus for growth.

The key to having more time is doing less, and there are two paths to get there, both of which should be used together: (1) Define a short to-do list and (2) define a not-to-do list.