The fountain of content must spring up in the mind, and they who have so little knowledge of human nature as to seek happiness by changing anything but their own dispositions will waste their lives in fruitless efforts.

"Mathematics is not a spectator sport."

True success comes from building relationships, not just transactions.

If you’re changing the world, you’re working on important things. You’re excited to get up in the morning.

The real challenge lies in making small-scale farmers part of the global solution.