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      • If one regards a living substance as a composite of matter and form, then the soul is the form of a natural—or, as Aristotle sometimes says, organic—body. An organic body is a body that has organs—that is to say, parts that have specific functions, such as the mouths of mammals and the roots of trees.
      www.britannica.com/biography/Aristotle/Philosophy-of-mind
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  2. Aristotle identifies soul with form, and body with matter. He assumes that to have a soul is to have the functional properties that are the form, and the relation of the soul to the body is the relation of the form to matter, and of actuality of potentiality.

    • Overview
    • Philosophy of mind of Aristotle
    • Ethics

    Aristotle regarded psychology as a part of natural philosophy, and he wrote much about the philosophy of mind. This material appears in his ethical writings, in a systematic treatise on the nature of the soul (De anima), and in a number of minor monographs on topics such as sense-perception, memory, sleep, and dreams.

    For Aristotle the biologist, the soul is not—as it was in some of Plato’s writings—an exile from a better world ill-housed in a base body. The soul’s very essence is defined by its relationship to an organic structure. Not only humans but beasts and plants too have souls, intrinsic principles of animal and vegetable life. A soul, Aristotle says, is “the actuality of a body that has life,” where life means the capacity for self-sustenance, growth, and reproduction. If one regards a living substance as a composite of matter and form, then the soul is the form of a natural—or, as Aristotle sometimes says, organic—body. An organic body is a body that has organs—that is to say, parts that have specific functions, such as the mouths of mammals and the roots of trees.

    The souls of living beings are ordered by Aristotle in a hierarchy. Plants have a vegetative or nutritive soul, which consists of the powers of growth, nutrition, and reproduction. Animals have, in addition, the powers of perception and locomotion—they possess a sensitive soul, and every animal has at least one sense-faculty, touch being the most universal. Whatever can feel at all can feel pleasure; hence, animals, which have senses, also have desires. Humans, in addition, have the power of reason and thought (logismos kai dianoia), which may be called a rational soul. The way in which Aristotle structured the soul and its faculties influenced not only philosophy but also science for nearly two millennia.

    Aristotle’s theoretical concept of soul differs from that of Plato before him and René Descartes (1596–1650) after him. A soul, for him, is not an interior immaterial agent acting on a body. Soul and body are no more distinct from each other than the impress of a seal is distinct from the wax on which it is impressed. The parts of the soul, moreover, are faculties, which are distinguished from each other by their operations and their objects. The power of growth is distinct from the power of sensation because growing and feeling are two different activities, and the sense of sight differs from the sense of hearing not because eyes are different from ears but because colours are different from sounds.

    The objects of sense come in two kinds: those that are proper to particular senses, such as colour, sound, taste, and smell, and those that are perceptible by more than one sense, such as motion, number, shape, and size. One can tell, for example, whether something is moving either by watching it or by feeling it, and so motion is a “common sensible.” Although there is no special organ for detecting common sensibles, there is a faculty that Aristotle calls a “central sense.” When one encounters a horse, for example, one may see, hear, feel, and smell it; it is the central sense that unifies these sensations into perceptions of a single object (though the knowledge that this object is a horse is, for Aristotle, a function of intellect rather than sense).

    Besides the five senses and the central sense, Aristotle recognizes other faculties that later came to be grouped together as the “inner senses,” notably imagination and memory. Even at the purely philosophical level, however, Aristotle’s accounts of the inner senses are unrewarding.

    Aristotle regarded psychology as a part of natural philosophy, and he wrote much about the philosophy of mind. This material appears in his ethical writings, in a systematic treatise on the nature of the soul (De anima), and in a number of minor monographs on topics such as sense-perception, memory, sleep, and dreams.

    For Aristotle the biologist, the soul is not—as it was in some of Plato’s writings—an exile from a better world ill-housed in a base body. The soul’s very essence is defined by its relationship to an organic structure. Not only humans but beasts and plants too have souls, intrinsic principles of animal and vegetable life. A soul, Aristotle says, is “the actuality of a body that has life,” where life means the capacity for self-sustenance, growth, and reproduction. If one regards a living substance as a composite of matter and form, then the soul is the form of a natural—or, as Aristotle sometimes says, organic—body. An organic body is a body that has organs—that is to say, parts that have specific functions, such as the mouths of mammals and the roots of trees.

    The souls of living beings are ordered by Aristotle in a hierarchy. Plants have a vegetative or nutritive soul, which consists of the powers of growth, nutrition, and reproduction. Animals have, in addition, the powers of perception and locomotion—they possess a sensitive soul, and every animal has at least one sense-faculty, touch being the most universal. Whatever can feel at all can feel pleasure; hence, animals, which have senses, also have desires. Humans, in addition, have the power of reason and thought (logismos kai dianoia), which may be called a rational soul. The way in which Aristotle structured the soul and its faculties influenced not only philosophy but also science for nearly two millennia.

    Aristotle’s theoretical concept of soul differs from that of Plato before him and René Descartes (1596–1650) after him. A soul, for him, is not an interior immaterial agent acting on a body. Soul and body are no more distinct from each other than the impress of a seal is distinct from the wax on which it is impressed. The parts of the soul, moreover, are faculties, which are distinguished from each other by their operations and their objects. The power of growth is distinct from the power of sensation because growing and feeling are two different activities, and the sense of sight differs from the sense of hearing not because eyes are different from ears but because colours are different from sounds.

    The objects of sense come in two kinds: those that are proper to particular senses, such as colour, sound, taste, and smell, and those that are perceptible by more than one sense, such as motion, number, shape, and size. One can tell, for example, whether something is moving either by watching it or by feeling it, and so motion is a “common sensible.” Although there is no special organ for detecting common sensibles, there is a faculty that Aristotle calls a “central sense.” When one encounters a horse, for example, one may see, hear, feel, and smell it; it is the central sense that unifies these sensations into perceptions of a single object (though the knowledge that this object is a horse is, for Aristotle, a function of intellect rather than sense).

    Besides the five senses and the central sense, Aristotle recognizes other faculties that later came to be grouped together as the “inner senses,” notably imagination and memory. Even at the purely philosophical level, however, Aristotle’s accounts of the inner senses are unrewarding.

    The surviving works of Aristotle include three treatises on moral philosophy: the Nicomachean Ethics in 10 books, the Eudemian Ethics in 7 books, and the Magna moralia (Latin: “Great Ethics”). The Nicomachean Ethics is generally regarded as the most important of the three; it consists of a series of short treatises, possibly brought together by Ari...

  3. Oct 23, 2003 · What is it that, when present in a body, makes it living? — A soul. Now, as we have seen in some detail, the Greek notion of soul included the idea of soul as animating body probably as early as the sixth century, when Thales attributed soul to magnets.

  4. Jan 11, 2000 · He claims, for example, using vocabulary derived from his physical and metaphysical theories, that the soul is a “first actuality of a natural organic body” (De Anima ii 1, 412b5–6), that it is a “substance as form of a natural body which has life in potentiality” (De Anima ii 1, 412a20–1) and, similarly, that it “is a first ...

  5. Feb 18, 2024 · Here’s a defense, from Minding the Brain (Discovery Institute Press, 2023) of hylomorphism, an increasingly popular way of thinking about the human soul that unites it fully with the body — without denying either its immateriality or its immortality.

  6. Nov 2, 2023 · The soul is the form of the body, and the body is the material of the soul. In the simplest possible terms, this is how Aristotle’s hylomorphism relates to Aristotle’s theory of the soul.

  7. This gives us the resources to understand the full definition of soul: “soul is the first actuality of a natural body that is potentially alive. . . 412a27,” and again, “soul is the first actuality of a natural organic body” (412b5).

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