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.

Great moments are born great opportunity.

Inventors don't have time for married life.

When wireless is fully applied the earth will be converted into a huge brain, capable of response in every one of its parts.

I am even grateful to Einstein and others because through their erroneous theories they lead mankind away from that dangerous path I followed.

It’s not the love you make. It's the love you give.

If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.