Joseph Rudyard Kipling

Even the tiger runs and hides when little Tabaqui goes mad, for madness is the most disgraceful thing that can overtake a wild creature.

"Look at me," said Bagheera. And Mowgli looked at him steadily between the eyes. The big panther turned his head away in half a minute.

"That is why," he said, shifting his paw on the leaves. "Not even I can look thee between the eyes, and I was born among men, and I love thee, Little Brother. The others they hate thee because their eyes cannot meet thine; because thou art wise; because thou hast pulled out thorns from their feet—because thou art a man."

At last there were only Akela, Bagheera, and perhaps ten wolves that had taken Mowgli's part. Then something began to hurt Mowgli inside him, as he had never been hurt in his life before, and he caught his breath and sobbed, and the tears ran down his face.

"What is it? What is it?" he said. "I do not wish to leave the jungle, and I do not know what this is. Am I dying, Bagheera?"

"No, Little Brother. That is only tears such as men use," said Bagheera. "Now I know thou art a man, and a man's cub no longer. The jungle is shut indeed to thee henceforward. Let them fall, Mowgli. They are only tears."