/ http://www.slideshare.net/images/logo.gif / 狠狠撸Share feed for 狠狠撸shows by User: morganchoate52 https://cdn.slidesharecdn.com/profile-photo-morganchoate52-48x48.jpg?cb=1523423294 Your toughness is made up of equal parts: persistence and experience. You don鈥檛 so much outrun your opponents as outlast and outsmart them, and the toughest opponent of all is the one inside your head.