I agree with WyoWoman on the beauty of the circles. They are works of art. But these works of art are a form of grafitti because in the creation something is damaged, namely the farmer's crops. So why would an all too human artist hang around to take credit (and the legal hassle and fines) for his/her works of art?

The quote by Einstein is appropriate if you remember that he was talking about something he knew very well, the ability to wonder. He said it very well when he said that ability was the "fundamental emotion which stands at the cradle of true art and true science"

Scientists and skeptics are well able to wonder and marvel at the world. They see the things that are and their curiosity drives them to look deeper. The difference between them and those who follow the pseudosciences is the way they pursue that wonder. The followers of pseudoscience see something wondrous and accept it on the surface without asking more about it. The scientist and skeptic asks why and how and thereby uncovers more layers of wonder and beauty than pseudoscience can even acknowledge.