Wise men, when in doubt whether to speak or to keep quiet, give themselves the benefit of the doubt, and remain silent.
Napoleon HillWe do not have to wait for future discoveries in connection with the powers of the human mind for evidence that the mind is the greatest force known to mankind. We know, now, that any idea, aim or purpose that is fixed in the mind and held there with a will to achieve or attain its physical or material equivalent, puts into motion powers that cannot be conquered.
Napoleon Hill