抽象不仅仅是隐藏细节；它是关于创建问题域的清晰简洁的模型。
Abstraction is not just about hiding details; it's about creating a clear and concise model of the problem domain.
回忆就像影子 - 它们无处不在跟着你，即使在没有光的时候。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
我们必须筑起勇气的堤坝，挡住恐惧的洪流。
The art of the novel is to make the reader forget that the writer exists.
——与伦敦《滨海杂志》记者谈话，1911年11月
帮助地球最有效的方法就是停止食用动物。