Excerpt from The Science of Logic, Vol. 2 of 2: An Inquiry Into the Principles of Accurate Thought and Scientific Method 200. Transition to Part IV. - We have now completed our examination of the formal aspect of the reasoning process, and of the rules that guarantee its formal correctness or validity (Part III.). But the object of all reasoning, of all science and philosophy in fact, is to arrive at a certain knowledge of truth; and, to secure this, it is not enough that our reasoning processes be correct or valid formally: the judgments involved in them must, furthermore, be all both true and certain. Truth is, as we saw (9, 79), contained in the mental act of judgment, to which the operations both of inference and of conception are thus subsidiary. An analysis of the material or "truth" aspect of inference will therefore, of necessity, direct our attention once more to the judgments of which our inferences are composed, and to the concepts or ideas which enter into our judgments (Parts I. and II.) After having separately examined each of the three mental operations, of conception, judgment, and inference, our next concern is to inquire how we reach true judgments, especially those true universal judgments which constitute scientific knowledge: how, in other words, we are to exercise those three mental operations on the data of knowledge to the best advantage for the acquiring of truth: how' we are to regulate and co-ordinate those mental acts, conception, judgment, and reasoning, in exploring the various departments of the know-able universe. This portion of logical doctrine is variously described as applied logic, methodology, or the science of logical method. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.