"We are all inclined to accept conventional forms or colours as the only correct ones. Children sometimes think that stars must be star-shaped, though naturally they are not. The people who insist that in a picture the sky must be blue, and the grass green, are not very different from these children. They get indignant if they see other colours in a picture, but if we try to forget all we have heard about green grass and blue skies, and look at the world as if we had just arrived from another planet on a voyage of discovery and were seeing it for the first time, we may find that things are apt to have the most surprising colours."

“The beginning of the sixteenth century, the Cinquecento, is the most famous period of Italian art, one of the greatest periods of all time. This was the time of Leonardo da Vinci and Michelangelo, of Raphael and Titian, of Correggio and Giorgione, of Dürer and Holbein in the north, and of many other famous masters. One may well ask why it was that all these great masters were born in the same period, but such questions are more easily asked than answered. One cannot explain the existence of genius. It is better to enjoy it.”

“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.”

“There really is no such thing as Art. There are only artists.”

“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.”

“Anyone who can handle a needle convincingly can make us see a thread which is not there.”

“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 can embark on a 'copy' of reality.”