The essence of cryptography is to allow communication in the presence of adversaries.

Illustrations should not just decorate the text; they should expand it.

解释：兵器既不齐全又不锋利，实质上和没有兵器一样！

To understand the present, you must first understand the past.

创新不仅仅是创造新事物，而是以最有效的方式解决实际问题。

我们都有缺陷，那是光照进来的地方。

没有压力，就没有钻石。

挑战是伪装的机遇。拥抱它们，你会在别人看到障碍的地方找到成长。