It's impossible to translate this exactly, you'll never fully appreciate the piece.
这篇文章不可能准确翻译,所以你也许永远不可能好地阅读它。
This hobby educates one not only in the chosen subject, but also in general matters which have some bearing on it.
这种爱好不仅能使人从选择的专题中受到教育,而且也能从与之有关的一般事物中获得长进。