"The challenge in theoretical computer science is not just to solve problems, but to understand why they are hard to solve."
凡是圣人制造的这些东西,无一不是有益于实用才去做的,所以使用财物不浪费,民众能够不劳苦,他兴起的利益太多了。 
我们一起经历了这么多,这正是让我们变得强大的原因。
You have to be willing to fail to be successful.
Awaken the soul through education.