Full Idea
The possession of the single virtue of prudence will carry with it the possession of them all.
Clarification
'Prudence' is Greek word 'phronesis', for which the translation 'practical reason' is nowadays preferred
Gist of Idea
The one virtue of prudence carries with it the possession of all the other virtues
Source
Aristotle (Nicomachean Ethics [c.334 BCE], 1145a02)
Book Reference
Aristotle: 'Ethics (Nicomachean)', ed/tr. ThomsonJ A K/TredennickH [Penguin 1976], p.225
A Reaction
Prudence is phronesis, of which I prefer the translation 'common sense', thought he scholars call it 'practical wisdom'. People can be sensible in one are, and stupid in another.
Related Idea
Idea 4117 Nowadays we (unlike Aristotle) seem agreed that someone can have one virtue but lack others [Williams,B on Aristotle]