Gauthier What is the definition of morality, according to Gauthier? Define "equilibrium" and "optimum." Why does Gauthier believe that morality is required only when the two diverge? Explain what Gauthier means when he says that "The coincidence of equilibrium and optimum in the outcome of the perfectly competitive market is central to our argument." Why does Gauthier say that moral categories are "inapplicable" to the operations of the market