Collaboration is key in scientific discovery; no one can do it alone.

数算练习告诉我们算术运算的原理，而不是单单的记忆和不断演算。

The most important computer is the one that rages in our skulls and ever seeks that satisfactory external emulator. The standarization of real computers would be a disaster - and so it probably won't happen.

The problem of quality management is not what people don't know about it. The problem is what they think they do know.