We are all migrants through time.

Sustainable practices are not just good for the planet—they're good for business.

Remembering that I'll be dead soon is the most important tool I've ever encountered to help me make the big choices in life. Because almost everything—all external expectations, all pride, all fear of embarrassment or failure—these things just fall away in the face of death, leaving only what is truly important. Remembering that you are going to die is the best way I know to avoid the trap of thinking you have something to lose. You are already naked. There is no reason not to follow your heart.

翻译：贤明的君主和将领，之所以一出兵就可以战胜敌人，成就的功业超过一般人，是因为他们能事先探明敌情。事先探明敌情，不能使用占卜的手段获取，不可用类比的方法获取，也不可推验日月星辰运行来获取。一定要取之于人，取之于了解敌情的人。

相对论不仅仅是一种科学理论；它是一种哲学理论。

真正的困难不在于构思新想法，而在于摆脱旧观念。