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

I make more mistakes than anyone else I know, and sooner or later, I patent most of them.

Nature is truly wonderful. Only man is truly foul.

There are no rules here -- we're trying to accomplish something.

When Thomas Edison’s factory burned to the ground in 1914, destroying one-of-a-kind prototypes and causing $23 million in damage, Edison’s response was simple:
"Thank goodness all our mistakes were burned up. Now we can start fresh again.

The three great essentials to achieve anything worthwhile are, first, hard work; second, stick-to-itiveness; third, common sense.