《论衡·卷十三·超奇篇》
其实，花和果实是在一起生成的，无花而结果，这样的东西少有。山是秃的，怎么会繁茂呢？
夫华与实，俱成者也，无华生实，物希有之。山之秃也，孰其茂也？
In fact, flowers and fruits are generated together. There are few things that do not bear fruit. How can a mountain be bare and still be lush?