如果你想改变行业，先从改变自己的做法开始。

局外人

孩子越能够专心，就越能从工作中得到平静，就越能发自内心地纪律或规则。

如果生活不有趣，那将是悲剧的。

数学是神与人类交谈的语言。

I love flowers so much that I could kiss them, but I know if I did, they would wither and die.

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.