The Open Society and Its Enemies (Princeton Classics)

by Karl Popper

We see now that the Utopian approach can be saved only by the Platonic belief in one absolute and unchanging ideal, together with two further assumptions, namely (a) that there are rational methods to determine once and for all what this ideal is, and (b) what the best means of its realization are. Only such far-reaching assumptions could prevent us from declaring the Utopian methodology to be utterly futile. But even Plato himself and the most ardent Platonists would admit that (a) is certainly not true; that there is no rational method for determining the ultimate aim, but, if anything, only some kind of intuition. Any difference of opinion between Utopian engineers must therefore lead, in the absence of rational methods, to the use of power instead of reason, i.e. to violence.