Of the 200 light bulbs that didn't work, every failure told me something that I was able to incorporate into the next attempt.
Good fortune is what happens when opportunity meets with planning.
No Such Thing as Bad Results
Success is the result of hard work.
Opportunity is missed by most people because it is dressed in overalls and looks like work.
I am both pleased but astonished by the fact that mankind has not yet begun to use all the means and devices that are available for destruction. I hope that such weapons are never manufactured in quantity.