The essence of computation is not just in the manipulation of symbols, but in the profound understanding of what those manipulations represent.

The only way to have a friend is to be one.

在糟糕的时候抱有希望不仅仅是愚蠢的浪漫。这是基于人类历史不仅是残酷的历史，也是同情、牺牲、勇气和善良的历史。