最好的学习方法就是动手去做——在实验室里亲自动手。
The best way to learn is by doing—get your hands dirty in the lab.
The land gives us everything; we must give something back.
社会可以并且确实执行自己的命令，如果它发布错误的命令，而不是正确的，或者在不应该干涉的事情中发布任何命令，那么它实际上在实践一种比许多政治压迫更可怕的社会暴政，尽管通常不受到如此极端的惩罚支持，但它留下的逃脱手段更少，深入到生活的细节中，甚至奴役了灵魂本身。
The voice is an instrument that is inside you. It’s the only instrument that you can’t see.
The business of education is not to make the young perfect in any one of the sciences, but so to open and dispose their minds as may make them capable of any, when they shall apply themselves to it.