Australian philosopher (1917-1981)
John Leslie Mackie FBA (25 August 1917 – 12 December 1981) was an Australian philosopher. He made significant contributions to ethics, the philosophy of religion, metaphysics, and the philosophy of language. Mackie had influential views on metaethics, including his defence of moral scepticism and his sophisticated defence of atheism.
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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 would. have been no need for the rules that constitute justice. Nor would there have been any need for them if nature had supplied abundantly, and without any effort on our part, all that we could want, if food and warmth had been as inexhaustibly available as, until recently, air and water seemed to be.
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.'
On our view of morality we can defend only nearly absolute principles. But a theist can believe that strictly absolute variants of these are commanded by God, and that we both must and can safely obey them even when from the point of view of human reason the case against doing so seems overwhelming: we can rely on God to avert or somehow put right the disastrous consequences of a 'moral' choice. But though a theist can believe this, it would gratuitous for him to do so without a reliable and explicit revelation of such absolute commands.
The abandonment of a belief in objective values can cause...a decay of subjective concern and sense of purpose. That it does so is evidence that...people...have been tending to objectify their concerns and purposes, have been giving them a fictitious external authority. A claim to objectivity has been so strongly associated with their subjective concerns and purposes that the collapse of the former seems to undermine the latter as well.
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The happiness with which I am, inevitably, most concerned is my own, and next that of those who are in some way closely related to me. Indeed, for any reasonably benevolent person these cannot be separated: he will find much of his own happiness in the happiness of those for whom he cares, or in what he and they do together, where the enjoyment of each contributes so essentially to that of the other(s) that it will be more natural to say 'We had a good...' (whatever it was) than to speak of a mere sum of individual enjoyments.
On an assumption that the normal and proper state of affairs is that people should live as members of various circles, larger and smaller, with different kinds and degrees of cooperation, competition, and conflict in these different circles, the appropriateness of telling the truth becomes disputable. Truth-telling naturally goes along with cooperation; it is not obviously reasonable to tell the truth to a competitor or an enemy.
Disagreement about moral codes seems to reflect people's adherence to and participation in different ways of life. The causal connections seems to be mainly that way round: it is that people approve of monogamy because they participate in a monogamous way of life rather than that they participate in a monogamous way of life because they approve of monogamy.
In one important sense of the word it is a paradigm case of injustice if a court declares someone to be guilty of an offence of which it knows him to be innocent. More generally, a finding is unjust if it is at variance with what the relevant law and the facts together require, and particularly if it is known by the court to be so.