计算复杂性的研究不仅仅是关于解决问题,还在于理解可计算性的极限。
成功者与不成功者的唯一区别就是是否愿意努力工作。
The struggle itself towards the heights is enough to fill a man's heart. One must imagine Sisyphus happy.
The real world is the most abstract thing of all.