/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: DemiFei https://cdn.slidesharecdn.com/profile-photo-DemiFei-48x48.jpg?cb=1523289932 My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all. -Stephen Hawking To be young, to be hurt~