To his very fingerprints each individual is essentially unique. By the same token society inevitably appears alien to him. This constitutes an ever present dilemma that can never be finally resolved. But it gives rise to ongoing processes of communication so that the problem is not so much a matter of authenticity (in any case a value judgment) as one involving the degree to which informational flow can be negotiated. As Jaspers 1 put it, 'Truth is communicability' (rather than as some would have it, a special preserve of madness).