狐狸吃不到葡萄说葡萄是酸的，乃《伊索寓言》里的名篇，广泛传播，世界享用，可以说它是放之四海而皆准的普遍真理。 可若按辩证法来看，事物往往有两面性，狐狸吃不着葡萄，有时说它是酸的，有时也会又想那葡萄也许很甜。尽管“这一面”《伊索寓言》里好像没讲，可事实一再证 The fox can not eat the grapes and says that the grapes are sour, but the famous articles in the Aesop’s Fables spread widely and enjoyed by the world. It can be said that it is a universally accepted universal truth. According to dialectics, things tend to have two sides. The fox can not eat the grapes, sometimes it is acid, and sometimes the grapes may be sweet. Although “this side” “Aesop’s Fables” does not seem to say, the facts can be repeated