理论的任务在于用更简单的东西替代待解释的现象，其中包含所发生事件的本质。

What a fool old Adam was. Had everything his own way; had succeeded in gaining the love of the best looking girl in the neighborhood, but yet unsatisfied with his conquest he had to eat a miserable little apple.

没有单一版本的历史；只有不同的视角。