"Then there's the odd, of course, fact that he had a very long love affair with a woman who he owned, who he inherited from his father-in-law, who was his wife's half-sister, and produced several children by her, whose descendants have mainly been brought up on the white side of the color line. So in a strange way, his own patrimony disproves his own belief that there couldn't be coexistence between black and white Americans."
January 1, 1970
https://en.wikiquote.org/wiki/Thomas_Jefferson