阅读只为心灵提供知识的材料；是思考使我们所读的东西成为我们自己的。

The individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.

零知识证明是一种证明你知道某事而不透露它是什么的方法。