/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: thyashenlight https://cdn.slidesharecdn.com/profile-photo-thyashenlight-48x48.jpg?cb=1523489009 What does man actually know about himself? Is he, indeed, ever able to perceive himself completely, as if laid out in a lighted display case?