Like art, science is born of itself, not of nature. There is no neutral naturalism. The artist, no less than the writer, needs a vocabulary before he… - Ernst Gombrich

Whether we know it or not, we always approach the past with some preconceived ideas, with a rudimentary theory we wish to test. In this as in many other respects the cultural historian does not differ all that much from his predecessor, the traveller to foreign lands. Not the professional traveller who is only interested in one particular errand, be it the exploration of a country’s kinship system or its hydroelectric schemes, but the broad-minded traveller who wants to understand the culture of the country in which he finds himself.

The true miracle of the language of art is not that it enables the artist to create the illusion of reality. It is that under the hands of a great master the image becomes translucent. In teaching us to see the visible world afresh, he gives us the illusion of looking into the invisible realms of the mind - if only we know, as Philostratus says, how to use our eyes.

If Van Eyck's patrons had all been Buddhists he would neither have painted the Adoration of the Lamb nor, for that matter, the Hunting of the Otter, but though the fact that he did is therefore trivially connected with the civilization in which he worked, there is no need to place these works on the periphery of the Hegelian wheel and look for the governing cause that explains both otter hunting and piety in the particular form they took in the early decades of the fifteenth century, and which is also expressed in Van Eyck’s new technique.