Thorstein Veblen 
The Theory of the Leisure Class [EPUB ebook] 

The first requisite of a good servant is that he should conspicuously know his place. It is not enough that he knows how to effect certain desired mechanical results; he must above all, know how to effect these results in due form. Domestic service might be said to be a spiritual rather than a mechanical function. Gradually there grows up an elaborate system of good form, specifically regulating the manner in which this vicarious leisure of the servant class is to be performed.