语言不仅仅是符号系统，还是具有社会和文化重要性的一组实践。
Language is not just a system of symbols， but a set of practices with social and cultural significance.
A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do.
技术创新是企业发展的根本动力，没有创新就没有未来。