Carl Gustav Carus

Carl Gustav Carus (3 January 1789 – 28 July 1869) was a German physiologist and painter, born in Leipzig, who played various roles during the Romantic era. A friend of the writer Johann Wolfgang von Goethe, he was a many-sided man: a doctor, a naturalist, a scientist, a psychologist, and a landscape painter who studied under Caspar David Friedrich. Provided by Wikipedia