The teacher's task is not to implant facts but to place the subject to be learned in front of the learner and, through sympathy, emotion, imagination, and patience, to awaken in the learner the restless drive for answers and insights which enlarge the personal life.

I don't want to be the girl who was in 'Harry Potter' forever. I want to be known for what I do next.

Cryptography is the art of transforming information into a form that is unintelligible to anyone who does not possess the key to unlock it.

出自汉·桓宽《盐铁论·疾贪》。欲，想。表，仪表，这句话指身体。下，指下属。先之身，先要求自己。要想影子正，就要先把自己的身子站直；要想下属清廉，自己要先做出表率。这句话以正影先正身为喻，说明正人先正己的道理。

Freedom does not consist in any dreamt-of independence from natural laws, but in the knowledge of these laws, and in the possibility this gives of systematically making them work towards definite ends.