数学之美在于它能够精确而优雅地描述自然界的基本法则。
母子关系是矛盾的,在某种意义上,是悲剧性的。它需要母亲最强烈的爱,然而这种爱必须帮助孩子离开母亲,变得完全独立。
Train people well enough so they can leave, treat them well enough so they don't want to.
如果你不冒险,你将永远为那些敢于冒险的人工作。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.