I have harnessed the cosmic rays and caused them to operate a motive device.

Let the future tell the truth and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I really worked, is…

If Edison had a needle to find in a haystack, he would proceed at once with the diligence of the bee to examine straw after straw until he found the object of …

Money does not represent such a value as men have placed upon it. All my money has been invested into experiments with which I have made new discoveries enabli…