The Fox and the Grapes (New Fable)

Two foxes passed by a grape trellis. The sight of a large bunch of bright purple grapes on the trellis made their hearts itch. However, the two of them failed to eat the grapes despite all their efforts. The red fox said angrily: "These grapes must be sour!" The white fox didn't believe it: "I won't know until I taste it." Purpose: Practice and seek knowledge