“Impressionism was the name given to a certain form of observation when #Monet, not content with using his eyes to see what things were or what they looked like as everybody had done before him, turned his attention to noting what took place on his own retina (as an oculist would test his own vision).”

JohnSingerSargent
The Black Brook
c.1908
Oil paint on canvas
552 × 698 mm