/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: carnotaaguin https://cdn.slidesharecdn.com/profile-photo-carnotaaguin-48x48.jpg?cb=1523047200 That if there is only a great good is KNOWLEDGE but, if there is only one great EVIL, that is IGNORANCE