What I want to talk to you about today is the difference between gifts and choices. Cleverness is a gift， kindness is a choice. Gifts are easy -- they're given after all. Choices can be hard. You can seduce yourself with your gifts if you're not careful， and if you do， it'll probably be to the detriment of your choices.

这是我的人生，机不可失。

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

The deepest theorems often arise from the simplest observations.

The stopwatch in the laboratory measures the vibration frequency of the human soul.

文学的美在于它能够使不可见的东西变得可见，为无声者发声，并照亮人类灵魂最黑暗的角落。

心理与物理之间的界限并不像我们通常认为的那样清晰。