现实的定义变成了：能够给出等价复制的东西。

心理现象是大自然对生存问题的解决方案。

原文英文：The most merciful thing in the world， I think， is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity， and it was not meant that we should voyage far.

在统计工作中，正确的数学工具必须用于正确的问题，而且工具必须锋利。

The more you sweat in practice, the less you bleed in battle.

跳舞吧，就像没有人观看一样；去爱吧，就像从未受过伤害一样。