mechanical motion; or to take a simple arithmetical instance: if 10 divide by 2 equals 5 then 10 divided by 5 equals 2; and therefore if we once recognize the power of thought to produce any results at all, we shall see that the law by which negative thought produces negative results is the same by which positive thought produces positive results. Therefore all our distrust of the law of growth, whether shown in the anxious endeavor to bring pressure to bear from without, or in allowing despair to take the place of cheerful expectation, is reversing the action of the original cause and consequently reversing the nature of the results. It is for this reason that the Bible, which is the most deeply occult of all books, continually lays so much stress upon the efficiency of faith and the destructive influence of unbelief; and in like manner, all books on every branch of spiritual science emphatically warn us against the admission of doubt or fear. They are the inversion of the principle, which builds up, and they are therefore the principle, which pulls down; but the Law itself never changes, and it is on the unchangeableness of the law that all Mental Science is founded.

We are accustomed to realize the unchangeableness of natural law in our every day life, and it should therefore not be difficult to realize that the same unchangeableness of law, which obtains on the visible side of nature, obtains on the invisible side as well. The variable factor is, not the law, but