"Computer Science" is not a science, and its ultimate significance has little to do with computers. The computer revolution is a revolution in the way we think and in the way we express what we think. The essence of this change is the emergence of what might best be called procedural epistemology—the study of the structure of knowledge from an imperative point of view, as opposed to the more declarative point of view taken by classi- cal mathematical subjects. Traditional mathematics provides a framework for dealing precisely with notions of "what is." Computation provides a framework for dealing recisely with notions of "how to".
-- Sussman

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