/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: hussam3h https://cdn.slidesharecdn.com/profile-photo-hussam3h-48x48.jpg?cb=1523249248 "He who grasps everything himself is best of all; he is noble also who listens to one who has spoken well; but he who neither grasps it himself nor takes to heart what he hears from another is a useless man" - Hesiod