轧棉机的发明是需求和观察的结果。

语言是思想的外衣，但有时思想赤裸而行。

Leadership is about making the tough decisions and standing by them, even when they're unpopular.

A physicist's intuition is like a compass in the wilderness of complexity.

Don’t ask yourself what the world needs. Ask yourself what makes you come alive and then go do that， because what the world needs is people who have come alive.