Brecht: if sharks were men

Linked, because it has slipped my mind for almost a year, and because it's highly entertaining (if a little obvious). If sharks were men:

There would, of course, also be schools in the big boxes. In these schools the little fish would learn how to swim into the sharks' jaws. They would need to know geography, for example, so that they could find the big sharks, who lie idly around somewhere. The principal subject would, of course, be the moral education of the little fish. They would be taught that it would be the best and most beautiful thing in the world if a little fish sacrificed itself cheerfully...