This picture came to me from the Tiger Lillies' Facebook page (thanks to @mertevenk for identifying the source, Construction Paper and Tears). Here, the opposites are connected by love.
This reminded me of the epigram to the first chapter of my 2003 book, where another pair of opposites live in the same house. Is that because they are in love, too? [Click on the excerpt to make it bigger, should you need to.]