The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。
心理与物理之间的界限并不像我们通常认为的那样清晰。
我们谷物生产成功的真正标准不仅在于产量，还在于我们如何平衡生产力与环境管理。
在任何科学事业中取得成功都需要非凡的能力、勤奋和精力。
失败是最好的老师。你通过犯错并找出纠正错误的方法来学习。
The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.