Changing the world doesn't require much money. Again, think in terms of empowerment and not charity. How much were Gandhi's teachers paid? How much did it cost to give Dr. Martin Luther King the books that catalyzed his mind and actions?

Being called a huckster and a charlatan started several years ago, so that's something I'm accustomed to. In most cases, it doesn't bother me.

The downstream effects are unknown. Do your best and hope for the best. If you're improving the world-however you define that-consider your job well done.

One can steal ideas, but no one can steal execution or passion.

I do not equate productivity to happiness. For most people, happiness in life is a massive amount of achievement plus a massive amount of appreciation. And you need both of those things.

Exercise is overrated.

Lacking an external focus, the mind turns inward on itself and creates problems to solve, even if the problems are undefined or unimportant. If you find a focus, an ambitious goal that seems impossible and forces you to grow, these doubts disappear.