I don't know the rules of grammar... If you're trying to persuade people to do something, or buy something, it seems to me you should use their language, the language they use every day, the language in which they think. We try to write in the vernacular.
David OgilvyI did not feel 'evil' when I wrote advertisements for Puerto Rico. They helped attract industry and tourists to a country which had been living on the edge of starvation for 400 years.
David OgilvyI notice increasing reluctance on the part of marketing executives to use judgment; they are coming to rely too much on research, and they use it as a drunkard uses a lamp post for support, rather than for illumination.
David Ogilvy