Want to know what the most successful people have in common? They have failed over and over again, but they never let it stop them. Failure is an important aspect to success because it often takes multiple trials in order to find the necessary route to achieving your goals. Here are 8 quotes from those who overcame great odds to reach the pinnacle of success. When you’re experiencing self-doubt or feeling too afraid to make an attempt at success, use these quotes as motivation and inspiration to keep your chin up and pushing your way forward.