knew that wealth, among other things, brought contacts and access to a different level of healthcare. We had neither.

Most of us understand how compound interest works with money, but don’t recognize its power in other parts of our lives. The app 1 Second Everyday reminds you to take a second of video each day, a small daily nuisance/investment.

Two-thirds of economic growth over the next fifty years will be in supercities. Opportunity is a function of density. Get to a place that’s crowded with success. Big cities are Wimbledon—even if you aren’t Rafael Nadal, your game will improve by being on the court with him. And you’ll either get in better shape or learn you shouldn’t be at

if balance is your priority in your youth, then you need to accept that, unless you are a genius, you may not reach the upper rungs of economic security.

Having a spouse, or life partner, whom you not only care for and want to have sex with, but who’s also a good teammate, softens the rough edges, and magnifies the shine of life.

Show me a guy who watches ESPN every night, spends all day Sunday watching football, and doesn’t work out, and I’ll show you a future of anger and failed relationships. Show me someone who sweats every day and spends as much time playing sports as watching them on TV, and I’ll show you someone who is good at life.

By the time you’re thirty, you should have a feel for what your burn is. Young people are 100 percent focused on their earnings. Adults also focus on their burn.

Invest Early, and Often

I regularly say things and write emails that make good people feel bad, and I know it. No excuse. Because I’m successful, people often recast this offensiveness as honesty or even leadership. No, it’s just being an asshole. I’m working on it.