If it's quotations you're after:

"Disinterested intellectual curiosity is the life-blood of real civilisation"
- G. M. Trevelyan

"A generous and elevated mind is distinguished by nothing more certainly than an eminent degree of curiosity
- Samuel Johnson

And, if we want to get all Biblical:

"Be not ignorant of any thing in a great matter or a small"
- Ecclesiasticus chapter 5, verse 15.

(and me an atheist too :-)