The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
抽象的目的不是模糊,而是创建一个新的语义层次,在这个层次上可以绝对精确。
当九月结束时叫醒我。
All truly great thoughts are conceived while walking.
In the realm of algorithms, efficiency is not just a goal; it is a necessity.