Warner 138: we should acknowledge "that different kinds of writing suit different purposes, that what is clear in one reading community will be unclear in another, that clarity depends on shared conventions and common references, that one man's jargon is another's clarity, that perceptions of jargon or unclarity change over time. (My students have trouble reading eighteenth-century prose that was a model of clarity in its time, but they take as self-evidently clear such terms as 'objective' and 'subjective'--denounced as hideous neologistic jargon when Coleridge used them"