/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: professorsuz https://cdn.slidesharecdn.com/profile-photo-professorsuz-48x48.jpg?cb=1523130100 "All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident." -Arthur Schopenhauer