According to the Introduction: "It is only when a building entirely fulfils the purpose for which it is intended and bears the impress of a genuine style that it takes rank as a work of architecture. This definition, exclusive though it at first sight appears, brings within the province of the art every structure which combines with practical utility beauty of design and execution, from the humblest cottage to the most dignified temple or palace. Suitability of material and harmony with its surroundings are among the minor factors that give to a building vitality of character and contribute to its enduring value, a value enhanced by its reflection of the needs and aspirations of those by whom and for whom it was erected."