Money is the most important thing in the world. It represents health, strength, honor, generosity, and beauty as conspicuously as the want of it represents illness, weakness, disgrace, meanness, and ugliness.
Edison was by far the most successful and, probably, the last exponent of the purely empirical method of investigation. Everything he achieved was the result of persistent trials and experiments often performed at random but always attesting extraordinary vigor and resource. Starting from a few known elements, he would make their combinations and permutations, tabulate them and run through the whole list, completing test after test with incredible rapidity until he obtained a clue. His mind was dominated by one idea, to leave no stone unturned, to exhaust every possibility.
That's when America soars, when we look out for one another and we take care of each other, when we root for one another's success, when we strive to do better and to be better than the generation that came before us and try to build something better for generations to come, that's why we do what we do. That's the whole point of public service.
I've come to believe that each of us has a personal calling that's as unique as a fingerprint - and that the best way to succeed is to discover what you love and then find a way to offer it to others in the form of service, working hard, and also allowing the energy of the universe to lead you.