It's not enough to have the right answers. You have to have the right questions.

Focus on impact, not approval. If you believe you can change the world, which I hope you do, do what you believe is right and expect resistance and expect attackers. Keep calm and carry on!

Slow down and remember this: Most things make no difference. Being busy is a form of mental laziness-lazy thinking and indiscriminate action.

To enjoy life, you don't need fancy nonsense, but you do need to control your time and realize that most things just aren't as serious as you make them out to be.

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

Remember—boredom is the enemy, not some abstract "failure.

People who avoid all criticism fail. It's destructive criticism we need to avoid, not criticism in all forms.