Tian Rao had served Ai Gong, the King of Lu, for many years but was never appointed to a significant position.
One day, Tian Rao said to Ai Gong, "I intend to leave Your Majesty and fly high and far to distant lands, like the wild goose."
"What do you mean?" asked Ai Gong.
Tian Rao replied, "Has Your Majesty never observed a rooster? It bears a red comb upon its head, appearing most elegant. Its feet are armed with sharp claws, giving it a martial bearing. When confronting foes, it fights with bravery and vigor to the very end. Upon finding food, it calls its companions to share, demonstrating kindness. It keeps watch through the night and heralds the dawn with its crow, never failing in its duty—a model of honesty. Though the rooster possesses these five virtues, Your Majesty still orders your servants to cook it for a meal. Why is this? Because it remains close to you."
Tian Rao paused, then continued, "As for the wild goose, it flies a thousand li in a single journey. At times, it alights by Your Majesty's ponds to eat your fish and turtles. At other times, it rests in Your Majesty's fields to peck at your beans and grains. Though it lacks the rooster's merits, Your Majesty holds it in high esteem precisely because it comes from afar. Therefore, I beg your permission to take my leave and fly high and far, like the wild goose."