Annals of Awesome Insults

... The person who wrote the advertisements is without doubt the most ignorant person now alive on the planet; also without doubt he is an idiot, an idiot of the 33rd degree, and scion of an ancestral procession of idiots stretching back to the Missing Link.
-- Mark Twain, in a letter addressed to a salesman who sent him an ad for some bogus medicine [Source: Letters of Note]