计算复杂性理论的发展向我们展示了并非所有问题都是平等的。
The development of computational complexity theory has shown us that not all problems are created equal.
Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.
时间不会治愈伤口，只会将它们埋在遗忘的层层之下。