不自律的人是没有自由的。

海鲜的真正成本必须包括保护海洋的成本。

荀子所说的“伪”，是“人为”的意思。天生就有的是“性”，是人力无法改变的；通过后天的学习、努力可以改变的，就是“伪”。所以荀子主张“化性起伪”，通过自己能掌控的力量来改变已成定数的东西。

I find I'm so excited. I can barely sit still or hold a thought in my head. I think it the excitement only a free man can feel, a free man at the start of a long journey whose conclusion is uncertain. I hope I can make it across the border.I hope the Pacific is as blue as it has been in my dreams. I hope to see my friend, and shake his hand. I hope.

无限小在自然中的作用是无限大的。

心灵可以被视为一个物理符号系统。