A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.
The best works are those that refuse to be easily understood.
儿童不是缩小的成人,而是有其自身发展规律的个体。
I'm not a god, but I'm not a regular person either.
那双曾经属于我的珍贵的手。
不要害怕失败,因为失败是成功的垫脚石。