The dead are our teachers, if we know how to listen.
逝者是我们的老师,如果我们懂得倾听。
多数人的暴政是一种加倍的暴政。
All men are immortal, but those who are not educated are immortal in a lower and less enviable sense.
在认识到热是运动的一种形式后,没有人会怀疑热可以转化为机械效应。