Inventing the Enemy: Essays by Umberto Eco Read Free Book Online Page A

essay “No Embryos in Paradise”), claimed that, like animals, they had only a sensitive soul and therefore were not yet human beings equipped with a rational soul, and would not participate in the resurrection of the flesh. Today he would be accused of heresy, but at that very civilized time they made him a saint.
    It is therefore a matter of deciding each time which criteria for truth we are using.
    It is on the very recognition of various degrees of verifiability or acceptability of a truth that our sense of tolerance is based. I may be obliged, from a scientific and educational point of view, to fail a student who claims that water boils at ninety degrees, like the right angle—as was apparently once suggested in an exam—but even a Christian ought to accept that for some people there is no other god than Allah and Muhammad is his prophet (as we likewise ask Muslims to do for Christians concerning Christian doctrine).
    And yet, in light of recent controversies, it seems that this distinction between different criteria of truth, typical of modern thought and in particular of logical scientific thought, produces a relativism that is seen as a historical malaise of contemporary culture, which rejects all idea of truth. But what do anti-relativists mean by relativism?
    Some encyclopedias of philosophy tell us there is a cognitive relativism, by which objects can be known only under conditions determined by human faculties. But in this sense Kant would also have been a relativist, and he certainly didn’t reject the possibility of setting out laws of universal value—and what is more, he believed in God, if only on moral grounds.
    Yet in another philosophical encyclopedia we find that relativism means “every idea that does not admit absolute principles in the field of knowledge and action.” But it is a different matter to reject absolute principles in the sphere of knowledge or the sphere of action. There are people who are prepared to assert that the statement “Pedophilia is evil” is a truth relative only to a particular system of values, seeing that it was or is accepted or tolerated in certain cultures, but who are nevertheless prepared to assert that the Pythagorean theorem must be valid for all times and all cultures.
    No one could seriously include Einstein’s theory of relativity under the label of relativism. To say that a measurement depends on the conditions of movement of the observer is regarded as a valid principle for every human being in every time and place.
    Relativism, as a philosophical doctrine as such, came into existence with nineteenth-century positivism, together with the claim that the Absolute is unknowable and, at most, is a movable limit of ongoing scientific research. But no positivist has ever claimed it is not possible to arrive at scientific truths that are objectively verifiable and valid for all.
    A philosophical position that, on a cursory reading of the textbooks, might be defined as relativistic is so-called holism, according to which every statement is true or false (and acquires a meaning) only within an organic system of assumptions, a given conceptual scheme, or, as others have said, within a given scientific paradigm. A holist claims (rightly) that the notion of space has a different meaning in the Aristotelian system than it does in the Newtonian system, so that the two systems are incommensurable, and that one scientific system is as valid as the other to the extent to which it succeeds in explaining a series of phenomena. But the holists are the first to tell us there are systems that cannot actually explain a series of phenomena, and that some are far better because they succeed better than the others in doing so. Thus even the holist, in his apparent tolerance, has to deal with matters that require explanation and, even when he doesn’t say so, follows what I would call a minimal realism: the belief that things exist or behave in a certain way. Perhaps we will never