死者是最执着的历史学家。
The dead are the most persistent historians.
Act as if what you do makes a difference. It does.
成人必须了解，儿童需要运用双手，并认同儿童第一次运用双手时，只是工作本能的展现。
计算机科学中最强大的工具不是计算机本身，而是人类的思维。
Risk management is more important than making money.
有些事情太严肃了，你不得不对它们一笑置之。
That is what learning is. You suddenly understand something you've understood all your life, but in a new way.