I never did anything by accident, nor did any of my inventions come by accident; they came by work.

The first step is an intuition and it comes with a burst, then difficulties arise - this thing gives out and then that - 'Bugs' - as such little faults and difficulties are called - show themselves, and months of intense watching, study and labor ar

I have not failed. I've just found 10,000 ways that won't work. -Thomas Alva Edison.

Opportunity is missed by most people because it is dressed in overalls and looks like work.

The best thinking has been done in solitude.

Not only will atomic power be released, but someday we will harness the rise and fall of the tides and imprison the rays of the sun.