Only by mastering core technologies can we remain invincible.
The challenge in computer science is not just to solve problems, but to understand why they are problems in the first place.
学习数学的最好方法就是去做数学。
La peur est souvent la cause de nos plus grands malheurs.
每一个明天都有两个把手。我们可以用焦虑的把手抓住它，也可以用信念的把手抓住它。