/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: IbrahimHamdy2 https://cdn.slidesharecdn.com/profile-photo-IbrahimHamdy2-48x48.jpg?cb=1524143445 Thoughts without content are empty, intuitions without concepts are blind… The understanding can intuit nothing, the senses can think nothing. Only through their union can knowledge arise."