Full Idea
The body is in its prime from the ages of thirty to thirty-five, and the soul around the age of forty-nine.
Gist of Idea
Men are physically prime at thirty-five, and mentally prime at forty-nine
Source
Aristotle (The Art of Rhetoric [c.350 BCE], 1390b09)
Book Reference
Aristotle: 'The Art of Rhetoric', ed/tr. Lawson-Tancred,H.C. [Penguin 1991], p.177
A Reaction
Wonderfully specific! It is important that Aristotle is interested in these questions. The good for man follows the path laid out by nature, in which a man rises to his highest good in maturity, and then declines from it into old age.