Of the 200 light bulbs that didn't work, every failure told me something that I was able to incorporate into the next attempt.
Thomas A. EdisonI believe that the science of chemistry alone almost proves the existence of an intelligent creator.
Thomas A. EdisonFailure is really a matter of conceit. People don't work hard because, in their conceit, they imagine they'll succeed without ever making an effort. Most people believe that they'll wake up some day and find themselves rich. Actually, they've got it half right, because eventually they do wake up.
Thomas A. Edison