Let what comes come. Let what goes go. Find out what remains.
让来的来,让去的去。找出剩下的是什么。
Every organism is in a struggle for existence.
我们都是自己选择的囚徒,但也是自己自由的设计师。
从n对观测值的样本中获得的相关系数的可能误差是sqrt((1-r²)/(n-2))。
Nobody wants to be this strenuous thing: an individual; it demands an effort.