We begin to see, therefore, the importance of selecting our environment with the greatest of care, because environment is the mental feeding ground out of which the food that goes into our minds is extracted.
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