"The study of computational complexity teaches us that some problems are inherently difficult, no matter how clever our algorithms are."
计算复杂性的研究告诉我们,有些问题本质上是困难的,无论我们的算法多么聪明。
不要为变老而遗憾。这是许多人求之不得的特权。
To understand the universe, we must first understand ourselves.
The true wealth of a country lies not just in its land but in its waters.
平静:不要被琐事、普通或者不可避免的事所扰。