After more than four years of involvement in the majority of elements of leadership, from identifying, qualifying, training, developing and consulting leaders, to functioning, being a leader, for several associations (large and small), I have frequently been asked, what I think, to be, even the most significant consideration of rule, of leading efficiently. I’ve discovered, and learned, whether it is possible to train someone, and supply them, with the necessary and essential abilities, to proceed, sensibly, an individual must start the process, using a particular kind of mindset, and attitude. In case that had to be summed – up, simply, and of course, it’d be, one must be directed by the core principle, todo, what’s suitable! Keeping that in mind, this article will attempt to briefly examine, consider, and talk, using the mnemonic strategy, why understanding human nature. And/ or what causes us do, what we do, is most important and important. Righteous; important; responsive; responsible; effects: It’s important to move, in a righteous manner, without having to be self – righteous! How could you know what’s relevant, until/ unless he pays keen attention, to the advantages and weaknesses, and the advantages, as well as drawbacks? Leading must concentrate on being responsive to demands, goals, priorities, and also the mission of this bunch! A leader is responsible for effective leadership planning, and hunting tactical and action plans, with sustainability, and achieving consequences, as core components.