This quote essentially states that those who feel the need to have the last word are those who believe they haven’t sufficiently expressed themselves. It implies a sense of insecurity or dissatisfaction in one’s ability to communicate their thoughts or feelings adequately. Marx suggests that this is foolish because it indicates an inability to let go, or a need to dominate or control a conversation, which can stifle communication rather than encourage it.

In the context of today’s world, this quote might be applied to social media debates, where people often fight to have the last word. This can lead to endless arguments that don’t lead to resolution or understanding, but rather foster division and hostility. Similarly, in politics, leaders who insist on having the last word can come across as authoritarian, unwilling to listen to opposing viewpoints, or insecure in their own position.

In terms of personal development, this quote could serve as a reminder to focus on listening and understanding, rather than simply expressing one’s own viewpoint. It suggests the value of humility, open-mindedness, and the ability to let go of the need to control or dominate a conversation. It also points to the importance of confidence in one’s own ideas and the ability to express them effectively, without feeling the need to constantly reaffirm or defend them.