Hubert van Eyck made a great stride toward the attainment of this knowledge.

When you look at the picture the perspective does not strike you as glaringly wrong, though there was still much that remained to be discovered by later men, as we shall see in our next chapter.
The brothers Van Eyck were, first and foremost, good workmen.

Few other painters in the whole of the world's history have aimed at anything like the same finish of detail.

In the original of this picture the oriental pot which the green Mary holds in her hand is a perfect marvel of workmanship.

There is no detail so small but that when you look into it you discover some fresh wonder.