SCIENCE, in philosophy, denotes any doctrine deduced from self-evident and certain principles, by a regular demon stration. Sciences may be properly divid ed as follows : 1. The knowledge of things, their constitutions, properties, and operations ; this, in a little more en larged sense of the word, may be called •uritot, or natural philosophy ; the end of which is speculative truth. 2. The skill of rightly applying these powers, arciz7ras ; the most considerable under this head is ethics, which is the seeking out those rules and measures of human actions that lead to happiness, and the means to practise them ; and the next is mechanics, or the application of the pow ers of natural agents to the uses of life. See PHILOSOPHY, moral. 3. The doctrine of signs, climes:wino the most usual of which being words, it is aptly enough termed logic: See Loose.
This, says Mr. Locke, seems to be the most general, as well as nAtural, division of the objects of our uhdetstapding. For a man can employ his thoughts about no thing but either the contemplation of things themselves, for the discovery of truth, or about the things in his own power, which are his actions, for the at tainment of his own ends; or the signs the mind makes use of, both in the one and the other, and the right ordering of them for its clearer understanding All which three, viz. things, as they are in themselves knowable ; actions, as they depend on us in order to happiness; and the right use of signs, in order to know ledge, being tote cdo different, they seem to be the three great provinces of the intellectual world, wholly separate and distinct one from another