/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: tsuchiyaikouta https://cdn.slidesharecdn.com/profile-photo-tsuchiyaikouta-48x48.jpg?cb=1523634588 The true laboratory is the mind, where behind illusions we uncover the laws of truth J.C. Bose