H. P. Grice: 'it would be unnatural or odd to employ this expression outside a limited range of situations, just because the empirical facts about perception ensure that normally we are in a position to use stronger and more informative language’

 'it would be unnatural or odd to employ this expression outside a limited range of situations, just because the empirical facts about perception ensure that normally we are in a position to use stronger and more informative language’