"A philosopher who is not taking part in discussions is like a boxer who never goes into the ring"

This quote indicates that a philosopher who does not engage in discussions and disputes about philosophical concepts is not really screening and refining their ideas. In the very same way that a boxer who never ever gets in the ring to eliminate is not really establishing their skills and evaluating their capabilities. For that reason, Wittgenstein is emphasizing the value of active involvement and engagement in order to fully check out and comprehend philosophical concepts.