He who knows all the answers has not asked all the questions.

This phrase connects us with The Socratic Paradox of Knowledge.
It dismantles the illusion of absolute certainty. It suggests that a state of "knowing everything" is not a symptom of profound wisdom, but rather a symptom of a severely limited imagination. True mastery is defined not by the answers you hoard, but by the quality of the questions you are willing to ask.
1. The Trap of Absolute Certainty
Having "all the answers" usually means you are operating within a very small, closed system.
If your worldview perfectly explains everything without any contradictions or anomalies, it is usually because you are unconsciously ignoring the data that doesn't fit.
Certainty is the enemy of discovery. Once you declare a subject or a problem "solved," your brain shuts down the curiosity required to see the next paradigm shift.
2. The Expanding Perimeter of the Unknown
There is a famous metaphor: As your island of knowledge grows, so does your shoreline of ignorance.
A beginner often thinks they know everything because their scope of the subject is tiny (this is known in psychology as the Dunning-Kruger Effect).
A true expert realizes they know very little because they have peered over the edge into the infinite complexity of reality. The smartest people in the room are rarely the ones shouting facts; they are usually the ones quietly saying, "It depends," or "I don't know yet."
3. Questions as the Engine of Evolution
Answers are static; questions are dynamic.
An answer is an endpoint—it stops the conversation. A question is a catalyst—it starts the journey.
Golden Rule: Beware of the person who claims to have life completely figured out. Be a perpetual student. The moment you trade your curiosity for the comfort of certainty is the moment your mind stops growing and starts fossilizing.