时间是一个从我们感知变化的方式中衍生出来的概念。
The more you subtract, the more you reveal.
生活充满了惊喜,有些是好的,有些则不那么好。但它们都是旅程的一部分。
I am not trying to imitate a photograph; I am trying to make one.
I'm the bad guy who makes fun of people that die.
"In observational studies, we often have to rely on assumptions that are not directly testable."