The truth is that the phenomena of artistic production are still so obscure, so baffling, we are still so far from an accurate scientific and psychological knowledge of their genesis or meaning, that we are forced to accept them as empirical facts; and empirical and non-explanatory names are the names that suit them best. The complete explanation of any fact is the very last step in human thought; and it is reached, as I have said, if indeed it is ever reached, by the preliminary processes of recognition, designation, and definition. It is with these preliminary processes that our aesthetic criticism is still occupied.