Maintain perfect harmony between yourself and every member of your mastermind group. If you fail to carry out this instruction to the letter, you may expect to meet with failure. The master mind principle cannot obtain where perfect harmony does not prevail.
Napoleon HillSelf-disciplined begins with the mastery of your thoughts. If you don't control what you think, you can't control what you do. Simply, self-discipline enables you to think first and act afterward.
Napoleon HillThe necessity for struggle is one of the clever devices through which nature forces individuals to expand, develop, progress, and become strong through resistance. . .We are forced to recognize that this great universal necessity for struggle must have a definite and useful purpose. That purpose is to force the individual to sharpen his wits, arouse his enthusiasm, build up his spirit of faith, gain definiteness of purpose, develop his power of will, and inspire his faculty of imagination to give him new uses for old ideas and concepts. . .
Napoleon Hill