WTTF, known for its thriftiness over the years, also became recognized for its engineering ingenuity. As empress, Empress Xu was known for her humility and thriftiness. Characteristic of the settlers were diligence, religious devotion, large families and thriftiness. His personal life was marked by thriftiness and general willingness to forgive. His work was characterised by a thriftiness of style alongside increasingly complex dimensional interplay. Thriftiness is believed to be key to this end.