/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: ChrisNaab https://cdn.slidesharecdn.com/profile-photo-ChrisNaab-48x48.jpg?cb=1528823463 There are things that I know and things that I don't know, but there is nothing that I know I don't know.