相关性和因果关系之间的区别不仅仅是学术上的——它可能具有深远的政策影响。

I'm the reason your joy won't last.

The beauty of mathematics is that it is one of the few areas of human endeavor where absolute truth can be known.

"The best way to innovate is to embrace failure."

人生の価値は、どれだけ愛したかで決まる。