Inspiration can be found in a pile of junk. Sometimes, you can put it together with a good imagination and invent something.

After we had conducted thousands of experiments on a certain project without solving the problem, one of my associates, after we had conducted the crowning experiment and it had proved a failure, expressed discouragement and disgust over our having failed to find out anything. I cheerily assured him that we had learned something. For we had learned for a certainty that the thing couldnt be done that way, and that we would have to try some other way.

There is a better way to do it - Find it!

Great ideas originate in the muscles.

The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense.

Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

One might think that the money value of an invention constitutes its reward to the man who loves his work. But... I continue to find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.