Of all the things you can do to be a success, the one which always wins out is "working hard." Successful people come into work a little earlier, stay a little later, and know how to put in the extra effort to do a fantastic job.
In fact, I'd agree with the statement above: "Hard Work Beats Talent." There are lots of highly educated people in the business world who aren't willing or able to push themselves hard enough to become a huge success. This is not to say you should sacrifice your family life, but when you can add more "oomph" you should.