".. he denounced the invention of the railway as a ‘crazy idea’ which had resulted in ‘too much coming and going’; in 1904, he confessed to the journalist C L de Moncade (with some justice), ‘I am the worst old fogey there is among the painters.’ This suspicion of modern technology went hand in hand with a suspicion of broader social changes. Extremely needy for male friendship, Renoir took a dim view of women’s intellectual abilities and described feminist authors such as George Sand and Juliette Adam as ‘calves with five hooves’. At the height of the Dreyfus Affair in the 1890s, Renoir threw in his lot with the conservative Right and slandered French Jews as rootless cowards."

From a review of a "Renoir: An Intimate Biography."

The notion that Renoir was a bad painter has already been discussed on this blog here, here, and here.