" Here is a man who is wretchedly poor. He is extremely anxious that his surroundings and home comforts should be improved, yet all the time he shirks his work, and considers he is justified in trying to deceive his employer on the ground of the insufficiency of his wages. Such a man does not understand the simplest rudiments of those principles which are the basis of true prosperity, and is not only totally unfitted to rise out of his wretchedness, but is actually attracting to himself a still deeper wretchedness by dwelling in, and acting out, indolent, deceptive, and unmanly thoughts.

Here is a rich man who is the victim of a painful and persistent disease as the result of gluttony. He is willing to give large sums of money to get rid of it, but he will not sacrifice his gluttonous desires. He wants to gratify his taste for rich and unnatural viands and have his health as well. Such a man is totally unfit to have health, because he has not yet learned the first principles of a healthy life.

Here is an employer of labor who adopts crooked measures to avoid paying the regulation wage, and, in the hope of making larger profits, reduces the wages of his work-people. Such a man is altogether unfitted for prosperity, and when he finds himself bankrupt, both as regards reputation and riches, he blames circumstances, not knowing that he is the sole author of his condition.

I have introduced these three cases merely as illustrative of the truth that man is the cause (though nearly always unconsciously) of his circumstances, and that, whilst aiming at a good end, he is continually frustrating its accomplishment by encouraging thoughts and desires which cannot possibly harmonize with that end. Such cases could be multiplied and varied almost indefinitely, but this is not necessary, as the reader can, if he so resolves, trace the action of the laws of thought in his own mind and life, and until this is done, mere external facts cannot serve as a ground of reasoning. "

― James Allen , As a Man Thinketh