复杂性理论告诉我们，并非所有问题都是平等的；有些问题本质上比其他问题更难。
"Complexity theory teaches us that not all problems are created equal; some are inherently harder than others."
"To write is to breathe, to live, to exist beyond the confines of time and space."
The art of discovery is not in finding new lands but in seeing with new eyes.