Concentration, itself, is nothing but a matter of control of the attention! Learn to fix your attention on a given subject, at will, for whatever length of time you choose, and you will have learned the secret passage-way to power and plenty! This is concentration!
Napoleon HillYour attitude towards problems, difficulties, and adversities is the most important factor in overcoming them.
Napoleon HillA Positive Mental Attitude is the right mental attitude. What is the right mental attitude? It is most often comprised of the "plus" characteristics symbolized by such words as faith, integrity, hope, optimism, courage, initiative, generosity, tolerance, tact, kindliness, and good common sense. A person with positive mental attitude aims for high goals and constantly strives to achieve them.
Napoleon Hill