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。
字里行间的沉默往往比文字本身更有力。
拥有越多的工具，失去越多的灵魂。
The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.