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

If we use our fuel to get our power, we are living on our capital and exhausting it rapidly. This method is barbarous and wantonly wasteful, and will have to be stopped in the interest of coming generations. The heat of the sun's rays represents an immense amount of energy vastly in excess of waterpower...The sun's energy controlled to create lakes and rivers for motive purposes and transformation of arid deserts into fertile land.

Be alone, that is the secret of invention; be alone, that is when ideas are born.

Perhaps I failed, but I did my best, These masters of mine may do the rest.

Most certainly, some planets are not inhabited, but others are, and among these there must exist life under all conditions and phases of development.

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.

The present is theirs; the future, for which I really worked, is mine.