“When young, they are attached by heavy chains to large stakes driven deep into the ground. They pull and yank and strain and struggle, but the chain is too strong, the stake too rooted. One day they give up, having learned that they cannot pull free, and from that day forward they can be “chained” with a slender rope. When this enormous animal feels any resistance, though it has the strength to pull the whole circus tent over, it stops trying. Because it believes it cannot, it cannot.”
