系统辨识是从观测到的输入输出数据中建立动态系统数学模型的科学与艺术。
Over the centuries the Indians developed sign language for communicating phenomena of interest. Programmers from different tribes (FORTRAN, LISP, ALGOL, SNOBOL, etc.) could use one that doesn't require them to carry a blackboard on their ponies.
I believe that poetry is a way to express the inexpressible.
Fear of things invisible is the natural seed of that which everyone in himself calls religion.
监狱生活充满了一段又一段的例行公事。
美即是真,真即是美——这就是你们在世上所知道、也该知道的一切。