Thou shalt have no household gods except those that be beautiful
or those that be useful.
Thou shalt not make unto thyself any likeness that is in the
heaven above or in the earth beneath, or in the waters under the
earth, that does not find an appropriate setting in thine house.
Thou shalt not look in vain upon the creations of the great
masters of decorative art.
Remember the colour scheme and keep a good background.
Honour the original design, however old it may be, and make the
most of it. Thou shalt not hesitate to correct the blunders of
faulty design and bad architecture.
Thou shalt not kill thy neighbours or thy friends with
over-decorated wall papers or oppressive decorations of any kind.
Thou shalt not bring together incongruous articles nor permit
insane arrangements of anything that is thine.
Thou shalt not permit any false note to mar the harmony of thy
decorations.
Thou shalt not imitate thy neighbour's house or anything that is
thy neighbour's, for it is the glory of the good decorator to show
originality but at the same time to acknowledge his dependence
upon those who have preceded him.