The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

拍卖中，规则和竞标者的策略一样决定结果。

我未来的女儿，我就让她健康快乐就行了。

I don't let anyone define me.

音乐是我的信仰，舞台是我的教堂。