/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: GregRose https://cdn.slidesharecdn.com/profile-photo-GregRose-48x48.jpg?cb=1523234474 A man's usefulness depends upon his living up to his ideals insofar as he can. Only those are fit to live who do not fear to die and none are fit to die who have shrunk from the joy of life and the duty of life. Theodore Roosevelt