—— 请按键盘 空白键 开始游戏 ——

The purpose of psychology is to explain how we manage to live.
A mathematical proof is not just a verification but a story that reveals deeper truths.
在我来这里之前,我对这个主题感到困惑。听了你的讲座后,我仍然感到困惑。但是在一个更高的层次上。
States are inherently aggressive and expansionist because they exist in an anarchic international system where there is no higher authority to keep them in check.
The only limits you have are the limits you believe.