In the dark all cats are grey

I hadn't realized "In the dark all cats are grey" was from Benjamin Franklin's Old Mistresses' Apologue (nor did I realize there was a sexual connotation). At least this guy credits Franklin. Was Deng Xiaoping 邓小平 reading that? 不管白猫黑猫，会捉老鼠就是好猫。(It doesn't matter whether it's a black cat or a white cat; as long as it catches mice it's a good cat.)

Update
In his comment to the story 驅怪 in Liaozhai 聊齋, Pu Songling says, 黃狸黑狸，得鼠者雄. ("It does not matter whether a racoon dog is yellow or black, as long as it catches rats.") I'm not the only one to see the similarity with Deng's pronouncement.