In mathematics, as in life, the most profound discoveries often come from asking the simplest questions.
一个人可以选择退回安全地带或迈向成长。成长必须一次又一次地选择;恐惧必须一次又一次地克服。
I'm not afraid of dying, I'm afraid of not trying.
对舒缓的事情,要急速解决,因为思想敏锐,往往获得成功;对急迫的事情,应沉稳处理,因为急躁忙乱,常常漏洞百出。