The study of life is the study of endless possibilities.

The meaning of a word is not a mental entity， but a social practice.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

艺术的功能不仅仅是如实反映现实，更是要想象可能的事物。

现代密码学的挑战不仅在于保护信息，而且在于以一种既高效又可扩展的方式来实现。