/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: kimmietorres71 https://cdn.slidesharecdn.com/profile-photo-kimmietorres71-48x48.jpg?cb=1529600495 He who devotes sixteen hours a day to hard study may become at sixty as wise as he thought himself at twenty. boring