Doubting Thomases scoffed scornfully when Henry Ford tried out his first crudely built automobile on the streets of Detroit. Some said the thing neve… - Napoleon Hill

If you must be careless with your possessions, let it be in connection with material things. Your mind is your spiritual estate! Protect and use it with the care to which Divine Royalty is entitled. You were given a will-power for this purpose. p. 173

Hard labor and good intentions are not sufficient to carry a man through to success, for how may a man be sure that he has attained success unless he has established in his mind some definite object that he wishes?

Temporary defeat should mean only one thing, the certain knowledge that there is something wrong with your plan. Millions of men go through life in misery and poverty, because they lack a sound plan through which to accumulate a fortune. p. 73