Ideas, Reason, and Skepticism: Replies to my Critics (original) (raw)
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Hume Studies, 2005
Hume's Copy Principle, which accords precedence to impressions over ideas, is restricted to simple perceptions. Yet in all the conceptual analyses Hume conducts by attempting to fit an impression to a (putative) idea, he never checks for simplicity. And this seems to vitiate the analyses: we cannot conclude from the lack of a preceding impression that a putative idea is bogus, unless it is simple. In this paper I criticise several attempts to account for Hume's seemingly cavalier attitude, and offer one of my own.
This paper is devoted to the nature and roles of sense impressions in Hume’s account of perception. At first sight Hume’s Treatise of Human Nature, a book written within the frame of reference of the Lockean ‘way of ideas’, is mostly devoted to the examination of ideas: ideas of memory and ideas of the imagination, general ideas, the ideas of space and time, the idea of cause and effect, etc. And it is true that in p. 8 of the Treatise Hume declares sense impressions to be beyond the bounds of his discussion, and only goes back again to issues directly relative to sensory perception as a source of knowledge towards the end of Book 1, in the 30-page section devoted to what he calls the ‘scepticism with regard to the senses’. Yet the pages of this work are full of vivid references to sense impressions: patches of colour such as a missing shade of blue, the purple surface of Hume’s own table, red and blue points, a hand spread against the blue colour of the firmament, the colours reflected in the clouds, a spot of ink, black characters on the white pages of history books—visual images prevail, but there are also the taste of a pineapple, the sweetness of a fig and the bitterness of an olive, the creaking of a door, a succession of notes on a flute, the warmth of the fire and the coolness of water, etc. Sense impressions are major protagonists of Hume’s theory of knowledge.
Hume and the Mechanics of Mind: Impressions, Ideas, and Association
The Cambridge Companion to Hume
By the time Hume started to work on his Treatise, the notion of an idea as the primary, most general sort of mental item dominated European philosophy. Although Descartes noted that, strictly speaking, only those "thoughts that are as it were images of things" were appropriately described as ideas, in practice he used "the word 'idea' to refer to whatever is immediately perceived by the mind." 1 Not only do we have ideas of trees and the sun, but we also have ideas of our own activities of thinking and willing. Locke characterizes 'idea' as "being that Term, which, I think, serves best to stand for whatsoever is the Object of the Understanding when a Man thinks." Locke also thinks that we not only have ideas that derive from things or objects in the world (ideas of sensation), but also of the activities and operations of our own minds (ideas of reflection). Ideas of sensation are acquired through the operation of external objects on our sense organs, while ideas of reflection come from introspection, from thinking about what happens within our own minds. He also thinks that these ideas of reflection are of two basic sorts of mental activity, perception and willing, that correspond to two faculties of mind: the understanding (or the power of thinking) and the will (or the power of volition). 2 Hume introduced important innovations concerning the theory of ideas. The two most important are the distinction between impressions and ideas, and the use he made of the principles of association in explaining mental phenomena. Hume divided the perceptions of the mind into two classes. The members of one class, impressions, he held to have a greater degree of force and vivacity than the members of the other class, ideas. He also supposed that ideas are causally dependent copies of impressions. And, unlike Locke and others, Hume makes positive use of the principle of association, both of the association of 80 ideas, and, in a more limited way, of the association of impressions. Such associations are central to his explanations of causal reasoning, belief, the indirect passions (pride and humility, love and hatred), and sympathy. These views about impressions and ideas and the principles of association form the core of Hume's science of human nature. Relying on them, he attempts a rigorously empirical investigation of human nature. The resulting system is a remarkable but complex achievement. I. IMPRESSIONS AND IDEAS Hume begins Book 1 of the Treatise, "Of the Understanding," by saying: "All the perceptions of the human mind resolve themselves into two distinct kinds, which I shall call IMPRESSIONS and IDEAS" (T 1.1.1.1, SBN 1). In his later Enquiry concerning Human Understanding (hereafter Enquiry) he says much the same thing, but adds an example: "Every one will readily allow, that there is a considerable difference between the perceptions of the mind, when a man feels the pain of excessive heat, or the pleasure of moderate warmth, and when he afterwards recalls to his memory the sensation, or anticipates it by his imagination" (EHU 2.1, SBN 17). In neither work does he make an attempt to explain what he means by the phrase, "perceptions of the mind," but it would have been obvious to any eighteenthcentury reader that he is using that expression much as Descartes and Locke had used the term "idea": for anything that mind is aware of or experiences. As he put it later in the Treatise: "To hate, to love, to think, to feel, to see; all this is nothing but to perceive" (T 1.2.6.7, SBN 67). Hume's initial step in the Treatise is to show that perceptions of the mind may divided into "two distinct kinds," impressions and ideas. These two kinds commonly differ, he says, "in the degrees of force and liveliness, with which they strike upon the mind." Among our impressions, those perceptions with the most "force and vivacity," are sensations (including those of pain and pleasure) and the passions and emotions. Ideas are described as "the faint images" of impressions that are found "in
The Implications of David Hume Philosophy on Impressions and Ideas
Understanding the distinction between impressions and ideas that Hume draws in the opening paragraph of his " A Treatise on Human Nature " is essential for understanding much of Hume's philosophy. This however is a task that has been the cause of a good deal controversy that rocks the literature of Hume. There is an alternative reading to the distinction as being between original mental entities and copied mental entities. Hume takes himself to discover this distinction as that which underlies our pre-theoretical sorting of mental entities. Hume's reading on human nature make him a more philosophical robust one and avoids many of the difficulties of previous interpretations. The focus of this essay is to show how ideas which are abstract in nature come about. This work shows how we gained knowledge through impressions and ideas. Hume also pointed this out on his " A Treatise on Human Nature " when he said everything we are of can be classified under two headings which are impressions and ideas. It is the duty of this work to show how impressions and ideas constitute our knowledge of the world.
In this paper I aim to investigate Hume’s well-known distinction between impressions and ideas, following the methodology of the history of ideas, and showing its specificity and suggesting a possible source, which has not been given much attention by the scholarship, namely the logical doctrines of the physician and anatomist William Harvey, which provide the key concepts to understand Hume’s logic of ideas. After some introductory remarks, the second part deals with the many issues involved in Hume’s distinction, and in the third part I examine Harvey’s logic of ideas. In conclusion I assess Hume’s debt to the English physician.
Fifteen years of a Classic: New Humean Studies
"I tend to agree with more dialectical positions such as Noxon's who, even being a critic of the approach of the two concepts, writes the following: Hume explained certain mental phenomena, notably belief, as effects of the association. And, going further, I say that belief is a feeling or sensation aroused by two factors: habit and the association of ideas, but it does not arise either from one or from other singly, each one is a part of a process that involves both. Therefore habit is an underlying principle which acts upon reasonable beings during their observation of constant conjunctions, in such a way that imagination can associate ideas only through this principle acting in the mind. However, as I have already stated in another text, such an association realised by the imagination will catch up to its certainty status just with the emergence of a feeling which imputes necessity to what is instead merely contingent".