Reflect upon your present blessings, of which every man has plenty; not on your past misfortunes, of which all men have some.

板块构造理论的美妙之处在于，它用如此简单的理论解释了如此多的现象。

实现不可能的唯一方法就是相信它是可能的。

I'm not perfect, but I'm perfect for you.

对称性是降低复杂性的概念（协同例程包括子例程）；到处寻找它。