Gerard Terboch. The Knifegrinder's Family.

Louis Le Nain (1600/1610-1648), The Peasant Family. c.1640-45

      As the title implies, these people are poor and happy because the only thing a human needs to live happily is to be the servant of a cat. Even people in the picture, penniless as they are, sustain a cat. In return cats provide mental support as well as a free rodent extermination service.