A civil and illuminating exchange on a potentially explosive question, raised by a proposed Federal Open Housing Law that would ban racial discrimination in the sale of housing. JM: "The ways in which people learn are also very, very diverse. I happen to believe very implicitly that the force of law is in itself an educative force, and that if it is illegal for your man who wants to be with Irishmen to exercise that preference at the expense of someone else's right to live in a decent home, then the second right, it seems to me, prevails; and in the course of time, as behavior conforms to law, people's attitudes and views will also tend to change."