Full Idea
Like activities produce like dispositions; hence we must give our activities a certain quality, because it is their characteristics that determine the resulting dispositions.
Gist of Idea
Like activities produce like dispositions, so we must give the right quality to the activity
Source
Aristotle (Nicomachean Ethics [c.334 BCE], 1103b22)
Book Reference
Aristotle: 'Ethics (Nicomachean)', ed/tr. ThomsonJ A K/TredennickH [Penguin 1976], p.92
A Reaction
Who doubts that a child brought up working for a charity would tend to be charitable, and one brought up amidst crime would tend to criminality? I just wish Aristotle could pin down the 'certain quality' the acts are supposed to have. 'Fine', I suppose.