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 particulars. In a gesture you use, in a look you see, in a tone you hear, you judge of the expression, propriety, and meaning from habit, not from reason or rules; that is to say, from innumerable instances of like gestures, looks, and tones, in innumerable other circumstances, variously modified, which are too many and too refined to be all distinctly recollected, but which do not therefore operate the less powerfully upon the mind and eye of taste. Shall we say that these impressions (the immediate stamp of nature) do not operate in a given manner till they are classified and reduced to rules, or is not the rule itself grounded, upon the truth and certainty of that natural operation? How then can the distinction of the understanding as to the manner in which they operate be necessary to their producing their due and uniform effect upon the mind? If certain effects did not regularly arise out of certain causes in mind as well as matter, there could be no rule given for them: nature does not follow the rule, but suggests it. Reason is the interpreter and critic of nature and genius, not their lawgiver and judge. He must be a poor creature indeed whose practical convictions do not in almost all cases outrun his deliberate understanding, or who does not feel and know much more than he