/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: daveepstein9 https://cdn.slidesharecdn.com/profile-photo-daveepstein9-48x48.jpg?cb=1523713753 Beware of the man who works hard to learn something, learns it, and finds himself no wiser than before... He is full of murderous resentment of people who are ignorant without having come by their ignorance the hard way. Kurt Vonnegut, "Cat's Cradle"