As the evolution of nature can be studied with any hope of success in those products only which nature has left us, the evolution of mind also can be effectually studied in those products only which mind itself has left us. These mental products in their earliest form are always embodied in language, and it is in language, therefore, that we must study the problem of the origin, and of the successive stages in the growth of mind. _Science of Thought._ If language and reason are identical, or two names, or two aspects only of the same thing, and if we cannot doubt that language had an historical beginning, and represents the work of man carried on through many thousands of years, we cannot avoid the conclusion that before those thousands of years there was a time when the first stone of the great temple of language was laid, and before that time man was without language, and therefore without reason. _Science of Thought._ MIRACLES If once the human mind has arrived at the conviction that _everything_ must be accounted for, or, as it is sometimes expressed, that there is uniformity, that there is care and order in everything, and that an unbroken chain of cause and effect holds the whole universe together, then the idea of the miraculous arises, and we, weak human creatures, call what is not intelligible to us, what is not in accordance with law, what seems to break through the chain of cause and effect, a miracle. Every miracle, therefore, is of our own making, and of our own unmaking. _Gifford Lectures, III._ It is due to the psychological necessities of human nature, under the inspiring influence of religious enthusiasm, that so many of the true signs and wonders performed by the founders of religion have so often been exaggerated, and, in spite of the strongest protests of these founders themselves, degraded into mere jugglery. It is true that all this does not form an essential element of religion, as we now understand religion. Miracles are no longer used as arguments in support of the truth of religious doctrines. Miracles have often been called helps to faith, but they have so often proved stumbling-blocks to faith, and no one in our days would venture to say that the truth as taught by any religion must stand or fall by certain prodigious events which may or may not have happened, which may or may not have been rightly apprehended by the followers of Buddha, Christ, or Mohammed. _Gifford Lectures, II._