The algebraic analysis soon makes us forget the main object [of research] by focusing attention on the abstract combinations and it is only at the end that we return to the original objective.
代数分析很快让我们忘记了研究的主要对象，将注意力集中在抽象的组合上，直到最后我们才回到最初的目标。
People who are really serious about software should make their own hardware.
The key to success is to keep going even when things seem impossible.
The mind's primary task is to organize experience for action.
Every story has the potential to inspire, to educate, and to entertain.
Only if we understand, can we care. Only if we care, will we help. Only if we help, shall all be saved.