/ http://www.slideshare.net/images/logo.gif / 狠狠撸Share feed for 狠狠撸shows by User: hefnyyoussef https://cdn.slidesharecdn.com/profile-photo-hefnyyoussef-48x48.jpg?cb=1706224882 I am a strong supporter of the following quotes: - "Knowledge is useless unless accessible" (John M. Barry), - "Knowledge is the only thing that is increasing when shared" (Socrates), - "Education is the most powerful weapon which you can use to change the world." (Nelson Mandela)