/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: Galvanize https://cdn.slidesharecdn.com/profile-photo-Galvanize-48x48.jpg?cb=1532411805 There are three kinds of intelligence: one kind understands things for itself, the other appreciates what others can understand, the third understands neither for itself nor through others. This first kind is excellent, the second good, and the third kind useless.