It turns out that he was right about this one, but it wasn't accepted 'til later the next century. By this time Feagie Benton, a local scientist, claimed it was his idea, and the world rode on his jock strap, so the idea was then "True". Turns out that the color white sucks the life out of the genitals and sends it direct to the Great Alarm. It's so wrong.
Common tell-tale signs of White Underwear Death syndrome-
McFing says it was a old one-third Cherokee-Two thirds-Scottish oral tradition that spoke of the ills of white underwear and how a man can transform into a gigantic carnivorous squirrel by moonlight to sever meats for chewy meals.