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。
未来取决于你今天做什么。
To solve a problem, one must first understand its nature and then find the right tools to tackle it.