It has been just so in all my inventions. The first step is an intuition-and comes with a burst, then difficulties arise. This thing that gives out and then that-"Bugs"as such little faults and difficulties are called show themselves and months of anxious watching, study and labor are requisite before commercial success-or failure-is certainly reached.
Thomas A. EdisonI never perfected an invention that I did not think about in terms of the service it might give others... I find out what the world needs, then I proceed to invent.
Thomas A. Edison