The goal of mathematics is to make the simple complicated, and the complicated simple.
数学的目标是使简单的复杂化，使复杂的简单化。
表演最有回报的部分是在深层次的情感上与观众建立联系。
Quality is not an act, it is a habit.
I think the only free man can feel this kind of excitement, a free man step on a long journey, towards the uncertain future.
诚信是持久成功的基础。
学习一种新编程语言的唯一方法是用它编写程序。