Every person who wins in any undertaking must be willing to cut all sources of retreat. Only by doing so can one be sure of maintaining that state of mind known as a burning desire to win - essential to success.
Napoleon HillNothing was ever created by a human being that was not first created in the imagination through desire and then transformed into reality through concentration.
Napoleon HillA positive mind finds a way it can be done; a negative mind looks for all the ways it can't be done.
Napoleon Hill