The most efficient way to live reasonably is every morning to make a plan of one's day and every night to examine the results obtained.
A piece of wall can be visually disintegrated from the whole into a separate triangle by plunging a diagonal of light from edge to edge on the wall; that is, side to floor, for instance.
The American order reveals a method that was largely the outcome of material necessity, as exemplified by the Colonial style and the grid.