/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: ricarwillsantiagocruz https://cdn.slidesharecdn.com/profile-photo-ricarwillsantiagocruz-48x48.jpg?cb=1523523017 Friendship is the hardest thing in the world to explain. It's not something you learn in school. But if you haven't learned the meaning of friendship, you really haven't learned anything.