Full Idea
Aristotle characterises wisdom as a search for explanations (aitiai, which can also be translated as 'causes') and explanatory knowledge (epistemé, knowledge why something is as it is).
Gist of Idea
Wisdom seeks explanations, causes, and reasons why things are as they are
Source
report of Aristotle (Metaphysics [c.324 BCE], Bk 01.2) by Vassilis Politis - Aristotle and the Metaphysics 1.1
Book Reference
Politis,Vasilis: 'Aristotle and the Metaphysics' [Routledge 2004], p.4
A Reaction
I think this idea might be a key one for modern philosophers, if they are searching for a metaphysics which can be integrated with modern science.