感叹蔡泽当年壮志难酬，才去找唐举来解决问题。知道天道微妙难以捉摸，要跟随渔夫同享山水乐。

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))。

The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll serve us right!

一本好的绘本会给读者的想象力留下成长的空间。

Every person you meet knows an amazing lot about something you know virtually nothing about. Your job is to discover what it is， and it won’t be obvious.

决不要害怕刹那－－永恒之声这样唱着。

仰望星空，而不是低头看脚。试着理解你所看到的，并思考是什么让宇宙存在。保持好奇心。