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.
The best mathematics is not just logical; it is intuitive and creative, blending rigor with imagination.
最好的电影是那些让你思考的电影。
成功不是终点,失败也并非致命,重要的是继续前进的勇气。