Sentence:  Impressionism is the generalizing of the subject-matter as a whole and the expression of only its salient features. The extreme realist or <WSD>detailist</WSD> of the Ruskin type has for years been insisting that a spade was a spade and should be painted to look like a spade; that a spade was not a spade until every nail in the handle and every crack in the blade became apparent. 
Meaning of the word marked with <WSD> tags:  An artist who produces highly detailed work.