Given the opportunity, under the right conditions, two cells from wildly different sources, a yeast cell, say, and a chicken erythrocyte, will touch, fuse, and the two nuclei will then fuse as well, and the new hybrid cell will now divide into monstrous progeny. Naked cells, lacking self-respect, do not seem to have any sense of self.
To expect people to be good, to be just, to be temperate, etc., without showing them how they should become so, seems like the ineffectual charity mentioned by the apostle, which consisted in saying to the hungry, the cold and the naked, be ye fed, be ye warmed, be ye clothed, without showing them how they should get food, fire or clothing.