As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.
正如几何学最自然的起点是数学点，在观察和自然历史中采用同样的方法也最真实、简单且富有教益。
毫无疑问：计算机处理数字-而不是符号。我们通过对活动进行数字化的程度来衡量我们的理解（和控制）。
Every aspect of learning or any other feature of intelligence can in principle be so precisely described that a machine can be made to simulate it.
"I have always felt that I am a foreigner, even in my own country."
徒步旅行的真正魅力不在于行走，也不在于风景，而在于交谈。
真相是，你无法逃避你的过去。无论你跑得多快，它总是在你身后。
Mental processes are tools for mastering the environment.