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.
A writer is someone who pays attention to the world.
通常,这是证明目的的手段:目标前进的技巧,即使目标结构崩溃,技巧也能生存。
The joy of discovery is what drives mathematicians forward.