Full Idea
Knowledge that can be acquired only by someone who is clever or who has access to special training is not counted as part of wisdom.
Gist of Idea
Wisdom is open to all, and not just to the clever or well trained
Source
Philippa Foot (Virtues and Vices [1978], p.6)
Book Reference
Foot,Philippa: 'Virtues and Vices' [Blackwell 1981], p.6
A Reaction
Consider Pierre's peasant friend Platon Karatayev in 'War and Peace'. I assume 'special training' rules out anyone with a philosophy degree.