“ Thus the connotation of the term “boat,” being the sum of those qualities in respect of which all boats are regarded as alike, whatever their individual peculiarities may be, is described as a “concept.” The psychic process by which a concept is affirmed is called “Conception,” a term which is often loosely used in a concrete sense for “Concept” itself. It is also used even more loosely as synonymous in the widest sense with “idea,” “notion.” ”

“ Thus when one carries one’s thoughts back to a series of events, one constructs a psychic whole made up of parts which take definite shape and character by their mutual interrelations. This process is called conceptual synthesis, the possibility of which is a sine qua non for the exchange of information by speech and writing. ”