Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

心理学必须是一门功能的科学，而不仅仅是事实的科学。

The silence between words is where the truth hides.

债券市场是市场预期的最终晴雨表。

拥有众多军队不能得到军心，这和单人行动有什么区别呢？

无论你是谁，来自哪里，肤色如何，性别认同如何，请为自己发声。