计算复杂性的美在于它能够根据问题的固有难度对问题进行分类。
The beauty of computational complexity lies in its ability to classify problems based on their inherent difficulty.
The worst of having a romance of any kind is that it leaves one so unromantic.
改变的秘诀在于集中你所有的精力,不是对抗旧的,而是建立新的。
I don't chase success. I define it.
A ruler who hides behind paid executioners soon forgets what death is.
【解释】人常常在忧患困苦中,才能磨练意志,增长才干。