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。
You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself.
我是一个幸存者,我不会放弃,我不会停止,我会更加努力。
The past is a foreign country; they do things differently there.