“I don’t believe in limits,” Novak Djokovic told U.S. journalist Graham Bensinger last month. “I think limits are only illusions of your ego or your mind.” The sentiment is hardly a new one for ...

Michael Phelps’ quote ‘You can’t put a limit on anything’. The more you dream, the farther you get” is a powerful lesson on ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. "There are important ...