Patience and persistence are the keys to unlocking the mysteries of mathematics.
"知道"的含义已经从能够记住和重复信息转变为能够找到并使用信息。
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。
现实是一个视角问题；你离过去越远，它就显得越具体和可信。
The state of nature has a law of nature to govern it, which obliges every one: and reason, which is that law, teaches all mankind, who will but consult it, that being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.
心无杂念，行无妄动。
The Internet is a reflection of our society and that mirror is going to be reflecting what we see. If we do not like what we see in that mirror the problem is not to fix the mirror, we have to fix society.