Lectures by John Ruskin, from The Crown of Wild Olive (1866). John Ruskin was an English polymath – a writer, lecturer, art historian, art critic, draughtsman and philanthropist of the Victorian era. He wrote on subjects as varied as art, architecture, political economy, education, museology, geology, botany, ornithology, literature, history, and myth. (Wikipedia, CC BY-SA 4.0)