Your mental diet largely determines your character and your personality and almost everything that happens to you in life. When you feed your mind with positive affirmations, information, books, conversations, audio programs, and thoughts, you develop a more positive attitude and personality. You become more influential and persuasive. You enjoy greater confidence and self-esteem.
Brian TracySelf-discipline is the key to personal greatness. It is the magic quality that opens all doors for you, and makes everything else possible. With self-discipline, the average person can rise as far and as fast as his talents and intelligence can take him. But without self-discipline, a person with every blessing of background, education and opportunity will seldom rise above mediocrity.
Brian Tracy