Elephant tied to a rope रस्सी से बंधा हाथी

A kid sees an elephant being held by a small rope tied to his front leg. He was amazed that the huge elephant can break it anytime with very little effort but never tries to do that.He asked the trainer why the elephant never tries to break the bond. The trainer told him that when the elephant was small, they tie him with the same rope. That time it could not break it as it was not that strong,