My message is that animal welfare, in the general and in the particular, is largely a matter for the law. . . . There is no complete substitute for the law. Public opinion, though invaluable and indeed essential, is not the law. Public opinion is what makes laws possible and observance widely acceptable.
Lord Houghton of Sowerby at the Trinity College, Cambridge, Animal Rights Symposium at the culmination of Animal Welfare Year in 1977.