理解一个问题就是答案的一半。
Understanding a question is half an answer.
You can't direct a film unless you know what the end is going to be.
对我们懂得生活的人来说,数字都是些无关紧要的事。
"Every child deserves to see themselves in a book."
数学的进步是通过它能解决的问题数量来衡量的。