If someone's criticism is completely unfounded on data, then I don't want to hear it. It doesn't hold up to scrutiny.

You can enjoy stargazing just by going out and learning a couple constellations with your kids.

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.

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.

A goal without real consequences is wishful thinking. Good follow-through doesn't depend on the right intentions. It depends on the right incentives.

Writing is thought crystalized on a piece of paper, which can then be reviewed.

The most important actions are never comfortable.