All my old opinions were only stages on the way to the one I now hold, as itself is only a stage on the way to something else.
我过去的所有见解,都只是通往如今见解的阶段;而如今的见解,也只是通往其他认识的一个阶段。
— Robert Louis Stevenson · Virginibus Puerisque, and Other Papers · Crabbed Age and Youth —