Charles Kettering — American Inventor born on August 29, 1876, died on November 25, 1958

Thinking is one thing no one has ever been able to tax.
Keep on going and the chances are you will stumble on something, perhaps when you are least expecting it. I have never heard of anyone stumbling on something sitting down.
High achievement always takes place in the framework of high expectation.
The Wright brothers flew right through the smoke screen of impossibility.
There exist limitless opportunities in every industry. Where there is an open mind, there will always be a frontier.