Failures, repeated failures, are sign-posts on the road to achievement. The only time you don't want to fail is the last time you try something (and it works).
Charles KetteringResearch is an organized method for keeping you reasonably dissatisfied with what you have.
Charles KetteringNothing ever built arose to touch the skies unless some man dreamed that it should, some man believed that it could, and some man willed that it must.
Charles Kettering