It doesn't matter if you try and try and try again, and fail. It does matter if you try and fail, and fail to try again.
Charles KetteringThe typical eye sees the ten per cent bad of an idea and overlooks the ninety per cent good.
Charles KetteringGreat steps in human progress are made by things that don't work the way philosophy thought they should. If things always worked the way they should, you could write the history of the world from now on. But they don't, and it is those deviations from the normal that make human progress.
Charles Kettering