Thinking is very far from knowing Nigel Corlett, University of Nottingham, UK

This eighteenth century proverb culled, with no erudition on my part from a dictionary of quotations, expresses a truth important for ergonomists, and emphasises a view that Paul Branton espoused. The view is that there is a realm of ‘unconscious’ knowledge on which any expert, skilled person relies, but which is not always consciously available.