Misc: Thomas Edison quotes

Discontent is the first necessity of progress.
Hell, there are no rules here - we're trying to accomplish something.
I find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.
I never did anything by accident, nor did any of my inventions come by accident; they came by work.
Just because something doesn't do what you planned it to do doesn't mean it's useless.
Many of life's failures are people who did not realize how close they were to success when they gave up.
Nearly every man who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That's not the place to become discouraged.
Opportunity is missed by most people because it is dressed in overalls and looks like work.
Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.
Restlessness and discontent are the first necessities of progress.
There is no substitute for hard work.
We don't know a millionth of one percent about anything.
What you are will show in what you do.
When I have fully decided that a result is worth getting I go ahead of it and make trial after trial until it comes.
The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense.