The only way to learn mathematics is to do mathematics.
学习数学的唯一方法就是做数学。
Order is the shape upon which beauty depends.
A story should have a beginning, a middle, and an end, but not necessarily in that order.
实现明天的唯一限制将是我们今天的疑虑。
最好的公司建立在激情之上，而不仅仅是利润。
Wealth is not about having a lot of money; it's about having a lot of options.
The best time to plant a tree was 20 years ago. The second best time is now.