海鲜的真正成本不仅仅是标价，还有我们未偿还的环境债。

最大的智慧是知道自己一无所知。

黑洞不仅仅是宇宙的真空吸尘器；它们是测试我们物理理论极限的终极实验室。

There is no lasting hope in violence，only temporary relief from hopelessness.

True sustainability is about harmony with nature.

Watch your thoughts, for they become words. Watch your words, for they become actions. Watch your actions, for they become habits. Watch your habits, for they become your character. And watch your character, for it becomes your destiny. What we think, we become.

在日本与宫崎寅藏谈论其革命宗旨与方法，1897年

To find out what one is fitted to do, and to secure an opportunity to do it, is the key to happiness.