Full Idea
To want to know more than is sufficient is a form of intemperance.
Gist of Idea
Excessive curiosity is a form of intemperance
Source
Seneca the Younger (Letters from a Stoic [c.60], 088)
Book Reference
Seneca: 'Letters from a Stoic (Selections)', ed/tr. Campbell,Robin [Penguin 1969], p.159
A Reaction
This comes as a bit of a surprise, given the high value that philosophers place on knowledge. I'm reminded of Auberon Waugh's criticism of the Scots as a 'wildly over-educated people'. I think the problem is what you could have been doing instead.