thout objective foundation. For Hume all human knowledge had to be regarded as opinion and he held that ideas were faint copies of sensory impressions instead of vice - versa. Not only was the human mind less than perfect, it could never claim access to the world's order, which could not be said to exist apart from the mind. Locke had retained a certain faith in the capacity of the human mind to grasp, however imperfectly, the general outlines of an external world by means of combining operations. With Berkeley, there had been no necessary material basis for experience, though the mind had retained a certain independent spiritual power derived from God's mind, and the world experienced by the mind derived its order from the same source. ...