As we shall see in Section 2, classical utilitarians, such as Jeremy Bentham and especially Mill, were generally sympathetic to the idea of publicity. Still, it is also among utilitarians that we find one of the strongest principled defenses of secrecy. Sidgwick defends the idea that it may be necessary for utilitarianism to go under cover, and that this need not be unjust. In his Methods of Ethics (1874), he writes: