Like graffiti and proverbs, bumper sticker slogans invite compilation and classification. The taxonomist thus occupied soon concludes that occasional specimens appear sui generis. more careful thought, however, leads to the realization that in certain cases, at least, the peculiar instance provides the template for a genre.
"Formal Analogy is Best,"
Word Ways: Vol. 18
, Article 10.
Available at: http://digitalcommons.butler.edu/wordways/vol18/iss2/10