因果推断不仅仅是统计显著性；它关乎理解数字背后的机制。

The best way to find yourself is to lose yourself in the service of others.

"Memory is the only paradise from which we cannot be expelled."

是心灵使身体富有。

数学不是沿着一条清理干净的高速公路小心翼翼地行进，而是一次进入陌生荒野的旅程，探险者常常会迷路。