Carrying Mountains and Rivers on One Shoulder

A bare-chested young man lifted a giant cauldron as tall as a person high above his head. Looking back, the old man with a beard-stroking smile said, "Old man, I must be very strong." The old man smiled and said: "That's not enough. He can carry mountains and mountains. Xiao Dao'er, the true power of words is to carry mountains and rivers on one shoulder." The young man was unconvinced, "Where can there be such a person? If he can carry mountains and rivers on his shoulders, then how big his arms must be." The old man didn't answer.