What the wise may learn from fools?
He learns what not to do and that even fools may present something wise when it's tweaked a bit.
We are in the core the sum of everything that is true. No dumb thoughts, no sickening lies, no emotional nonsense, nothing of that is us. That's just filthy fluff that's nothing.
We are not what we are thinking. Most will go through opposites in their mind where they test to believe whatever nonsense. Nothing in the mind can change what they really are.
"People are dumb."
We have to separate being dumb from lack of knowledge. Why would anyone waste their time with learning knowledge they have little to no use for in their life? That's an insight...
Here's another insight: To not learn and understand life will be your death.
I doubt that more than a few hundred people in this world know what wisdom really contains: All differences are valued differently...
To not question everything will leave you with nothing inside-out. Will it all come down to what authority you trust, or what feelings you sense in making decisions regarding what's true or false?
Many act after identity-conformity and are confused by all hollow manipulations.
Be as egoistic as you can if you have real worth...