If you're too focused on your current business, it's hard to change and concentrate on innovating.

My guideline has always been to avoid a focus on me personally. Not because of any deep, dark secrets. Rather just a sense of privacy.

Humanity’s greatest advances are not in its discoveries – but in how those discoveries are applied to reduce inequity. Whether through democracy, strong public education, quality health care, or broad economic opportunity – reducing inequity is the highest human achievement.

Me and my dad are the biggest promoters of an estate tax in the US. It's not a popular position.

DNA is like a computer program but far, far more advanced than any software ever created.

When you revolutionize education, you're taking the very mechanism of how people be smarter and do new things, and you're priming the pump for so many incredible things.

Good stuff tends to happen gradually, whereas violence or catastrophes are deemed more newsworthy.