老鼠和人之间的唯一区别是老鼠会从经验中学习。
The only difference between a rat and a human is that a rat learns from experience.
"Books are the mirrors that reflect our struggles."
一八一四年，俄、奥、普联军兵临巴黎城下，理工学校学生要求参战。后来，这句名言被刻在巴黎理工学校梯型大教室的天花板正中心，一直激励着该校师生奋发好学。
对正义的评估必须基于对实际社会与可行替代方案的某种比较。
The more you hide, the more they look.
The best time to plant a tree was twenty years ago. The second best time is now.