a1 University of Cambridge/University of North Carolina, Chapel Hill
In this paper I contemplate two phenomena that have impressed theorists concerned with the domain of reasons and of what is now called ‘normativity’. One is the much-discussed ‘externality’ of reasons. According to this, reasons are just there, anyway. They exist whether or not agents take any notice of them. They do not only exist in the light of contingent desires or mere inclinations. They are ‘external’ not ‘internal’. They bear on us, even when through ignorance or wickedness we take no notice of them. They thus very conspicuously shine the lights of objectivity, and independence, and even necessity. By basking in this light, ethics is rescued from the slough of sentiment and preference, and regains the dignity denied to it by theorists such as Hobbes or Hume, Williams, Gibbard or myself. Hence, many contemporary philosophers compete to stress and to extol the external nature of reasons, their shining objectivity. The other phenomenon is that of the inescapable ‘normativity’ of means-ends reasoning. Here the irrationality of intending an end but failing to intend the means is a different shining beacon. It is that of pure practical reason in operation: an indisputable norm, again showing a sublime indifference to whatever weaknesses people actually have, and ideally fitted to provide a Trojan horse for inserting rationality into practical life. If the means-end principle is both unmistakably practical and yet the darling child of rationality itself, then other principles of consistency or of humanity, or of universalizing the maxims of our action, can perhaps follow through the breach in the Humean citadel that it has spearheaded. And so we get the dazzling prospect that if people who choose badly are choosing against reason, then this can be seen to be a special and grave defect. It would locate the kind of fault they are indulging. It would give us, the people of reason, a special lever with which to dislodge their vices. Being able to herd knaves and villains in a compound reserved for those who trespass against reason and rationality therefore represents definite progress.
Simon Blackburn is the Professor of Philosophy at the University of Cambridge, and a Research Professor at the University of North Carolina, Chapel Hill. He has written prolifically on issues in the philosophy of language, epistemology, meta-ethics, and metaphysics. His books include Spreading the Word, Ruling Passions, Essays in Quasi-Realism, and many others.