心若是牢笼，处处为牢笼，自由不在外面，而在于内心。

写作就是重写，重写就是理解。

The great powers are always searching for opportunities to gain power at the expense of rivals, and to dominate the system.

一个奇怪的事实是，关于地球史前条件得出了完全相反的结论，这反映了我们目前知识的不完整状态。

"The essence of mathematics is not to make simple things complicated, but to make complicated things simple."

The truth doesn’t set you free, it just makes you see the chains.

如果你不自我颠覆，别人就会颠覆你。