If men had been overwhelmingly benevolent, if each had aimed only at the happiness of all, if everyone had loved his neighbour as himself, there woul… - J. L. Mackie

Mutual toleration might be easier to achieve if groups could realize that the ideals which determine their moralities in the broad sense are just that, the ideals of those who adhere to them, not objective values which impose requirements on all alike.

Morality is not to be discovered but to be made: we have to decide what moral views to adopt, what moral stands to take.

A morality in the broad sense would be a general, all-inclusive theory of conduct: the morality to which someone subscribed would be whatever body of principles he allowed ultimately to guide or determine his choices of action. In the narrow sense, a morality is a system of a particular sort of constraints on conduct — ones whose central task is to protect the interests of persons other than the agent and which present themselves to an agent as checks on his natural inclinations or spontaneous tendencies to act. In this narrow sense, moral considerations would be considerations from some limited range, and would not necessarily include everything that a man allowed to determine what he did. In the second sense, someone could say quite deliberately, 'I admit that morality requires that I should do such-and-such, but I don't intend to: for me other considerations here overrule the moral ones.'