Has it not been dinned into us by proverb and sermon and fable that we never prize the music till the sweet-voiced bird has flown - or in other no less florid and true utterances?歌喉美妙的鸟儿飞走之后，我们才体会到它的歌声的可贵——这一类辞藻华丽而意义真实的格言、说教和寓言不是早就谆谆教导过我们了吗？
上句出现了or in other no less florid and true utterances? - 其中，less than +adj 用法这种用法的less than +adj 后为什么没有than比较呢？另外，这种less than+adj表达的是什么意思呢？ 谢谢！