This is a story that I came across quite recently.
The old philosopher has lost all his teeth. So they reply, “We only see the tongue.”
After a while, Confucius asks them, “What is in your mouth?”
“We have both our tongue and teeth,” they answer.
The dying philosopher pauses for breath. “This is my last message to you, my dear ones,” he concludes. “That which is gentle, lasts.
Therefore, always be gentle! Speak to everyone kindly, lovingly, gently!”