It is the duty of a student to get everything out of a teacher, and the duty of a teacher to get everything out of a student.
当我们意识到维持现状的痛苦大于改变现状的痛苦时,我们就会改变自己的行为。
Once you understand how to write a program get someone else to write it.
对任何模型的最大期望是它能提供一个对现实有用的近似。
我们唯一需要害怕的就是害怕本身。