In order to achieve independence, we must rely on our own strength.

对人进行教育，不管他是哪一类。

Do not feel absolutely certain of anything.

In mathematics, the art of proposing a question must be held of higher value than solving it.

Hold yourself responsible for a higher standard than anybody else expects of you. Never excuse yourself.

最成功的产品往往是解决日常问题的最简单方案。