Of things: The material cause or instrumentality whereby effects are produced; but implying a rational employer or contriver. 指物:借以产生效果的质料因或物质手段;但暗示着理性的使用者或发明者。
Although Lucas is not the contriver that reason anticipates theory, but the active advocate that is this theory all the time however. 卢卡斯虽然不是理性预期理论的发明者,但却一直是该理论的积极拥护者。