He who always knows best never learns.

Understand the thought

Meaning in plain English

Always knowing best preventing learning contrasts fixed certainty with openness to revision. The saying questions confidence that leaves no room for new information.

What the words are saying

The universal wording is a warning rather than a finding that a confident person never learns. A useful application welcomes relevant questions and evidence while still allowing justified conclusions. Changing a view is not required merely to appear open; reasons and actual information matter.

Everyday example

Someone checks a challenge to an established view and revises it when the evidence warrants change.

When to use it

Use it to encourage evidence-responsive learning.

Agent-assisted editorial interpretation. This explains the words; it does not by itself verify their author or earliest origin.