On Youth and Old Age
- Language:
- English
- Status:
- Complete work
- Authorship:
- Written by the author
- Condition of the text:
- No scanning noise detected (automatic measure over the whole text, not checked by hand)
- Extent:
- ~2,530 words · 12 passages
Cite this work
- APAAristotle. (n.d.). On Youth and Old Age. Digital reproduction: SigPhi. https://sigphiai.com/en/works/aristotle/on-youth-and-old-age
- MLAAristotle. On Youth and Old Age. Digital reproduction, SigPhi, https://sigphiai.com/en/works/aristotle/on-youth-and-old-age.
- ChicagoAristotle. On Youth and Old Age. Digital reproduction, SigPhi. https://sigphiai.com/en/works/aristotle/on-youth-and-old-age.
Reference to the edition that SigPhi reproduces: SigPhi is its digital reproduction, not its publisher. The edition's year is not in the metadata (hence "n.d."), and the translator appears only when recorded.
What it is about
Youth, old age and what lies between, explained by vital heat and its exhaustion.
Context and history
In the manuscripts it usually runs together with On Breathing and On Life and Death, and all three treat the same thing: what keeps a body alive and what runs out. Part of the Parva naturalia, the eight short works that continue the De anima by applying its theory to particular phenomena of the living body. They are transmitted as a group and read best together.
Editorial context, not a citable source: unlike the passages of the work itself, these statements cannot be checked against the corpus.
This organ, then, must be numerically one and the same and yet possess multiple and disparate aspects, for being animal and living are not identical. Since then the organs of special sensation have one common organ in which the senses when functioning must meet, and this must be situated midway between what is called before and behind (we call 'before' the direction from which sensation comes, 'behind' the opposite), further, since in all living things the body is divided into upper and lower (they all have upper and lower parts, so that this is true of plants as well), clearly the nutritive principle must be situated midway between these regions. That part where food enters we call upper, considering it by itself and not relatively to the surrounding universe, while downward is that part by which the primary excrement is discharged. Plants are the reverse of animals in this respect. To man in particular among the animals, on account of his erect stature, belongs the characteristic of having his upper parts pointing upwards in the sense in which that applies to the universe, while in the others these are in an intermediate position. But in plants, owing to their being stationary and drawing their sustenance from the ground, the upper part must always be down; for there is a correspondence between the roots in a plant and what is called the mouth in animals, by means of which they take in their food, whether the source of supply be the earth or each other's bodies. Part 2 All perfectly formed animals are to be divided into three parts, one that by which food is taken in, one that by which excrement is discharged, and the third the region intermediate between them. In the largest animals this latter is called the chest and in the others something corresponding; in some also it is more distinctly marked off than in others.…