Achieve self-mastery over your thoughts, and constantly direct them toward your goals and objectives. Learn to focus your attention on the goals that you want to achieve and on finding ways to achieve those goals.
Napoleon HillNothing constructive and worthy of man's efforts ever has or ever will be achieved except by that which comes from a positive mental attitude, based on a definiteness of purpose and activated by a burning desire, and acted upon until the burning desire is elevated to the level of applied faith.
Napoleon Hill