Sincerity is a critical trait that helps you move ahead in life faster and get closer to your goals. If you want to develop yourself, then it is essential to cultivate sincerity too.  Being sincere will help you remain focused on your targets. Whether it is about your personal or professional goals, it always helps if you are honest and genuine about things.  Sincerity can help in developing better relationships with people, as well as in becoming more courageous.