How do I define success? Let me tell you, money's pretty nice. But having a lot of money does not automatically make you a successful person. What you want is money and meaning. You want your work to be meaningful, because meaning is what brings the real richness to your life.
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.
If man has good corn, or wood, or boards, or pigs to sell, or can make better chairs or knives, crucibles, or church organs, than anybody else, you will find a broad, hard-beaten road to his house, though it be in the woods.
But man is a fickle and disreputable creature and perhaps, like a chess-player, is interested in the process of attaining his goal rather than the goal itself.
It is within your power to see that all you have experienced, trials, errors, faults, deceptions, passions, your love and your hope, shall be merged wholly in your aim.
Ambitious men spend their youth in rendering themselves worthy of patronage; it is their great mistake. While the foolish creatures are laying in stores of knowledge and energy, so that they shall not sink under the weight of responsible posts that recede from them, schemers come and go who are wealthy in words and destitute of ideas, astonish the ignorant, and creep into the confidence of those who have a little knowledge.