"Persistence and determination alone are omnipotent. The slogan 'Press On' has solved and always will solve the problems of the human race." Calvin Coolidge
Coolidge was on to something when he pointed out that talent and education had far less to do with success than most people thought. Coolidge, something of a self-made man himself, understood that talent and education only get you so far - when, in fact, quitting will rob you of all of the benefits of your "head start."
There is only one true human superpower we possess. It's not the power of flight. It certainly isn't the...