- "The brain is like a muscle. When it is in use we feel very good. Understanding is joyous." - Carl Sagan"“大脑就像肌肉一样，当我们使用时会感到愉悦。理解是充满欢乐的。”
- "The true test of civilization is, not the census, nor the size of cities, nor the crops - no, but the kind of man the country turns out."- Ralph Waldo Emerson
“对文明的真正检验，不在于人口多寡，不在于城市规模，不在于庄稼产量，而在于看这个国家造就出了什么样的人。” - He who destroys a good book kills reason itself. - John Milton
“毁禁一本好书就是杀死理性本身。”