"Why is there so much beauty in nature?' We do not believe that beauty is only in the eye of the beholder. There are objective features underlying at least some experiences of beauty, such as the frequency ratios of the notes of a major chord, the symmetry of geometric forms, or the aesthetic appeal of juxtaposed complementary colors. None of these have survival value, but all are prevalent in nature in a measure hardly compatible with chance. We marvel at the songs of birds, the color scheme of flowers (do insects have a sense of aesthetics?), of birds' feathers, and at the incomparable beauty of a fallen maple leaf, its deep red coloring, its blue veins, and its golden edges. Are these qualities useful for survival when the leaf is about to decay?"
- Henry Margenau (1901 - 1997)