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Subject Area: Political Theory
Topic: The English Revolution

CHAPTER IX.: of the several subjects of knowledge. - Thomas Hobbes, The English Works, vol. III (Leviathan) [1651]

Edition used:

The English Works of Thomas Hobbes of Malmesbury; Now First Collected and Edited by Sir William Molesworth, Bart., (London: Bohn, 1839-45). 11 vols. Vol. 3.

Part of: The English Works of Thomas Hobbes, 11 vols.

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CHAPTER IX.

of the several subjects of knowledge.

Knowledge.

There are of knowledge two kinds; whereof one is knowledge of fact: the other knowledge of the consequence of one affirmation to another. The former is nothing else, but sense and memory, and is absolute knowledge; as when we see a fact doing, or remember it done: and this is the knowledge required in a witness. The latter is called science; and is conditional; as when we know, that, if the figure shown be a circle, then any straight line through the centre shall divide it into two equal parts. And this is the knowledge required in a philosopher; that is to say, of him that pretends to reasoning.

The register of knowledge of fact is called history. Whereof there be two sorts: one called natural history; which is the history of such facts, or effects of nature, as have no dependence on man’s will; such as are the histories of metals, plants, animals, regions, and the like. The other, is civil history; which is the history of the voluntary actions of men in commonwealths.

The registers of science, are such books as contain the demonstrations of consequences of one affirmation, to another; and are commonly called books of philosophy; whereof the sorts are many, according to the diversity of the matter; and may be divided in such manner as I have divided them in the following table.

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