Letter 151

Isidore of PelusiumUnknown|isidore pelusium
From: Isidore of Pelusium, monk at Pelusium
To: Athanasius
Date: ~410 AD
Context: Isidore defends the wisdom of not knowing everything — arguing that uncertainty is the condition for genuine understanding.

What you call unreasonable, I consider to be wisdom.

If everything were perfectly clear and transparent to us, where would we use our intelligence? There would be nothing to inquire into, nothing to search for, nothing to discover. The very capacity for understanding would atrophy from disuse.

The fact that some things are hidden is not a defect in creation. It is an invitation. Inquiry sharpens the mind; discovery rewards it. The man who is given all the answers never learns to think at all.

Modern English rendering for readability. See the 19th-century translation or original Latin/Greek for scholarly use.