Inventing is a combination of brains and materials. The more brains you use, the less material you need.
Charles Kettering quote
It is not a disgrace to fail. Failing is one of the greatest arts in the world. Charles Kettering quote
Knowing is not understanding. There is a great difference between knowing and understanding: you can know a lot about something and not really understand it. Charles Kettering quote
My interest is in the future because I am going to spend the rest of my life there. Charles Kettering quote
