The best edits are the ones you don't notice.
沟通中最重要的是听到那些没说出口的话。
If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
我们教授一门学科不是为了培养关于该学科的小型活图书馆,而是让学生自己学会数学思考。