Design is not just what it looks like and feels like. Design is how it works.

自然是用数学语言写的。

I will hazard a prediction. When you are 80 years old， and in a quiet moment of reflection narrating for only yourself the most personal version of your life story， the telling that will be most compact and meaningful will be the series of choices you have made. In the end， we are our choices. Build yourself a great story.

我们不拥有记忆；记忆拥有我们。