数学的美只向更有耐心的追随者展示。

每一个词都是一个世界。

The most important political development of the last half century has been the spread of liberal democracy around the world.

Gunpowder is not just a tool of destruction, it can also be a medium for creation. 火药不仅是破坏的工具，它也能成为创造的媒介。

We must remember that in nature there are neither rewards nor punishments—there are consequences.

看看那些星星，看它们如何为你闪耀。

没有听到的不如听到的，听到的不如见到的，见到的不如了解到的，了解到的不如去实行，学问到了实行就达到了极点。

对心灵的研究必须摆脱一切先入为主的观念。