This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1865 edition. Excerpt: ... CHAPTER XX. On Sir William Hamilton's Conception Of Logic As A Science. Is Logic The Science Of The Laws, Ok Forms, Of Thought? Having discussed the nature of the three psychological processes which, together, constitute the operations of the Intellect, and having considered Sir W. Hamilton's theory of each, we are in a condition to examine the general view which he takes of the Science or Art, whose purpose it is to direct our intellectual operations into their proper course, and to protect them against error. Sir W. Hamilton defines Logic " the Science of the Laws of Thought as Thought." * He proceeds to justify each of the component parts of this definition. And first, is Logic a Science? Archbishop Whately says that it is both a Science and an Art. He says this in an intelligible sense. He means that Logic both determines what is, and prescribes what should be. It investigates the nature of the process which takes place in Reasoning, and lays down rules to enable that process to be conducted as it ought. For this distinction, Sir W. Hamilton is very severe on Archbishop Whately. In the Archbishop's sense of the words, he says, it never has been, and never could have been, disputed that Logic is both a Science and an Art. * Lectures, iii. 4. But* "the discrimination of art and science is wrong. Dr. Whately considers science to be any knowledge viewed absolutely, and not in relation to practice, --a signification in which every art would, in its doctrinal part, be a science; and he defines art to be the application of knowledge to practice, in which sense Ethics, Politics, and all practical sciences, would be arts. The distinction of arts and sciences is thus wrong. But . . . were the distinction correct it would be of no value, for it...