Page:Treatise of Human Nature (1888).djvu/718

694 of the sentiments, 509; (3) accession, 509, which can only be explained by imagination, which in this case proceeds from great to little, contrary to its usual course, 509-510 ns; small objects become accessions to great, not conversely, 511 n; illustration from rivers, confusion, and commixtion, 512 n; Procius and Sabinus, 513 n; (4) succession, assisted by association and ideas, 510, largely depends on imagination, 513 n; in transference of, by consent, 514, delivery required, 515; but since property is insensible delivery can only be symbolic, which resembles the superstitious practices of the Catholics. 515 (cf. 524); stability and transference of, laws of nature, 526 (cf. 514); the relation which determine, too numerous to proceed from nature, and also they are changeable by human laws, 528.

Proof—assurance derived from arguments from cause and effect; some times included under probable reasoning, sometime not, 124 (cf. 103); sensible distinguished from demonstrative, 449.

Proportion—'of ideas considered as such,' one kind of truth, 448; in equality or number, a demonstrable relation, 464.

Proposituri—(v. Judgment).

Prudence—tries to 'conform our actions to the general usage and custom,' 599; placed by some moralists at the head of the virtues, though only a 'natural ability,' 610.

Public—opposed to private (q.v.), 546, 569.

Punishment—can only be justified by doctrine of necessity, 411.

Quality—a source of relation, 15; degree in a demonstrable relation perceived by intuition, 70, 464; power, and necessity, and extension, qualities of perceptions, 166 f., 239; unknown qualities possible, 168 (cf. 172); our idea of a body, a collection of ideas of sensible qualities, 219; 'every quality, being a distinct thing from another, may be conceived to exist apart and may exist apart not only from every other quality but from that unintelligible chimaera of a substance,' 222; fiction of occult quality, 224; distinction between primary and secondary qualities, 226-231 (v. Body); sensible or secondary qualities, 227; the quality which operates distinguished from the subject in which it is placed in the cause of pride (q.v. § 1, Cause, § 10), 279, 330; permanent qualities in a person 'which remain after an action is performed,' 349; we are only to consider the quality or character from which the action proceeded, 575; only mental qualities virtuous or vicious, 607; natural qualities, 530.

Quantity—and number a source of relation, 14; proportion in quantity or number a demonstrable relation, 70, 464.

Reality (v. Existence)—two classes of realities, one the object of the memory and senses, the other of the judgment, 108; 'we commonly think an object has a sufficient reality when its being is