"Any evolutionary science... is a close-knit body of theory. It is a theory of a process, of an unfolding sequence... of cumulative causation. The great deserts of the evolutionist leaders... lie... in their having shown how this colorless impersonal sequence of cause and effect can be made use of for theory proper, by virtue of its cumulative character."

“The possession of wealth confers honor; it is an invidious distinction.”

“In the modern industrial communities... the apparatus of living has grown so elaborate and cumbrous... that the consumers of these things cannot make way with them in the required manner without help.”

“It is much more difficult to recede from a scale of expenditure once adopted than it is to extend the accustomed scale in response to an accession of wealth.”

“The chief use of servants is the evidence they afford of the master's ability to pay.”

“Leisure held the first place at the start, and came to hold a rank very much above wasteful consumption of goods... From that point onward, consumption has gained ground, until, at present, it unquestionably holds the primacy.”

“The means whereby this work of Nature is brought to its consummate issue are forces of Nature working under her Laws by the method of cause and effect. The principle, or "law," of causation is a metaphysical postulate; in the sense that such a fact as causation is unproved and unprovable. No man has ever observed a case of causation, as is a commonplace with the latterday psychologists.”