云计算不是一种技术，而是一种服务模式。
Cloud computing is not a technology, but a service model.
NP-completeness is not just a theoretical curiosity; it has profound implications for practical computing.
I’m a mirrorball, I’ll show you every version of yourself tonight.
词汇不仅仅是声音或符号，而是事实的标志。
最大的智慧是认识自己。