嗯，第一条规则是，如果你只是记住一些孤立的事实，然后试图把它们背出来，你是不可能真正知道任何东西的。如果事实不是挂在一个理论的格子架上，你就没有把它们变成一种可用的形式。
Paper can be permanent if you respect its characteristics and design accordingly.
One of the strongest motives that lead men to art and science， is escape from everyday life with its painful crudity and hopeless dreariness， such men make this cosmos and its construction in the pivot of their emotional life， in ordered to find the peace and the security， which they cannot find in the narrow whirlpool of personal experience.
我相信梦想的力量和努力工作的重要性。
世界的历史就是那些相信自己的人的历史。