This quote suggests that in any conflict, the physical battle is only part of the story. The moral stance, the belief in the righteousness of the cause, and the public perception of the conflict, play equally important roles in determining the outcome.

The “moral element” refers to the ethical and philosophical beliefs that underpin a war effort. This could be a belief in freedom, justice, or protection of the innocent. When soldiers believe in the cause they are fighting for, it can strengthen their resolve and boost their morale, making them more effective in battle.

“Public opinion” refers to the perception of the war among the general populace. This is crucial because public support can influence the resources and freedom a military has to operate. If the public is against a war, it can lead to protests, reduced funding, and other obstacles that can hinder the war effort.

In today’s world, this quote can be applied to many areas beyond war. For instance, in politics, winning an election is not just about having the best policies, but also about convincing the public that your cause is morally right and gaining their support.

In terms of personal development, it could mean that achieving your goals is not just about the physical effort you put in, but also about believing in the righteousness of your cause and gaining the support of those around you. If you don’t believe in what you’re doing, or if you’re doing it for the wrong reasons, it can be much harder to stay motivated and overcome obstacles. Similarly, if the people around you don’t support your goals, it can be much harder to achieve them.