Sometimes the most profound mathematics comes from playing with simple ideas until they reveal their hidden complexity.
有时最深刻的数学来自于玩弄简单的想法,直到它们展现出隐藏的复杂性。
想要画成方形或圆形就要遵循圆规和矩尺的法则,那么万事的功效就能显现出来。
Data abstraction is the reduction of a particular body of data to a simplified representation of the whole.