一个伟大的剪辑师知道何时该克制,何时该推进。
Mathematics is not a spectator sport. You have to do it to understand it.
Believe in yourself, even when no one else does.
人比事物更需要重建,刷新,复兴,回收和救赎;永远不要抛弃任何人。
试图在不激发学生学习欲望的情况下进行教学的老师,就像在冷铁上敲打。