The Art of Interior Decoration (1917)

"If you would have your rooms interesting as well as beautiful, make them say something, give them a spinal column by keeping all ornamentation subservient to line. Before you buy anything, try to imagine how you want each room to look when completed; get the picture well in your mind, as a painter would; think out the main features, for the details all depend upon these and will quickly suggest themselves. This is, in the long run, the quickest and the most economical method of furnishing..."