Ancient Jewish wisdom requires a father to do five things for his children: 1. He must first induct them into their socioreligious group so that they will never feel culturally disconnected. 2. He must then instruct them in what he expects from them. 3. He must also assist them to marry. 4. He must teach them an occupation by means of which they can become useful to humanity and thereby earn their living. 5. And finally, he must teach them to swim.