佛教中有一句话：初学者的心态。拥有初学者的心态是件了不起的事情。

I never give up. I keep fighting until the end.

当你解决一个数学问题时，你不仅得到了答案，还理解了为什么这是答案。

Society can and does execute its own mandates， and if it issues wrong mandates instead of right， or any mandates at all in things with which it ought not to meddle， it practices a social tyranny more formidable than many kinds of political oppression， since， though not usually upheld by such extreme penalties， it leaves fewer means of escape， penetrating much more deeply into the details of life， and enslaving the soul itself.

"The only way to get rid of a temptation is to yield to it."

人在幼年时，精神专注敏锐，成年后思想容易分散，因此教育要趁早，不可错过时机。