"Art is the tree of life.
Science is the tree of death."
Somewhat similar sentiments were expressed by Blake's contemporary, the young poet John Keats, who wrote:
"Philosophy will clip an Angel's wings
Conquer all mysteries by rule and line,
Empty the haunted air, and gnomed mine --
Unweave a rainbow..."
Figure 1. "Newton" by William Blake. Original is in the collection of Tate Britain. The image is in the Public Domain.
Figure 2. "The Ancient of Days" by William Blake. Originally published in 1794, as a frontispiece to "Europe a Prophecy." The image is in the Public Domain.
In my humble opinion, the views of both Blake and Keats were grossly misguided. Scientists are not blind to the beauty of the world. When I see an image such as the one taken by the Hubble Space Telescope that was dubbed "The Rose" (Figure 3), I believe that I am as capable to appreciate its exquisitely complex elegance as any artist. The fact that I also happen to know that this image represents two interacting galaxies, where the gravitational pull of each one of them is affecting the other, does not subtract anything from my ability to perceive its beauty. The additional knowledge that our own Milky Way galaxy is going to collide in a similar fashion with the Andromeda galaxy (in about 4 billion years, based on other Hubble observations), only adds to the emotional impact of this image. Furthermore, the fact that we know that galaxies evolve through a series of such collisions and mergers puts this image into a broad cosmic perspective.
Figure 3. A Hubble image of the interacting galaxies Arp 273, dubbed "The Rose."
Similarly, Newton's understanding of how the rainbow is formed did not take anything away from the rainbow's aesthetic attractiveness; it only added a level of depth to its significance. The best example of the fusion of art and science is, of course, provided by the phenomenal work of Leonardo da Vinci.