Following four years of involvement in nearly all parts of leadership, from identifying, qualifying, training, developing and consulting leaders, to serving, like a leader, for all organizations (small and large), I have often been asked, what I think, to be, even the most significant thing of rule, of contributing efficiently. I’ve detected, and learned, while it is likely to teach someone, and supply them, with the needed and necessary abilities, to proceed, sensibly, one has to begin the method, using a specific type of mindset, and also attitude. In case that must be summed – up, simply, and of course, it’d be, an individual has to be directed by the heart principle, todo, what’s perfect! Bearing that in mind, this article will try and briefly examine, consider, and discuss, together with the mnemonic approach, why understanding human nature. And/ or what makes us do, that which we do, is most important and relevant. Righteous; relevant; reactive; responsible; effects: It is vital that you proceed, at a righteous fashion, without having to be self – righteous! How could you understand what is relevant, until/ unless he pays keen attention, to both the advantages and flaws, and also the advantages, in addition to negatives? Leading needs to focus on being responsive to needs, goals, priorities, and also the assignment of this group! A leader is responsible for effective leadership preparation, and seeking tactical and action plans, together with sustainability, and realizing consequences, as center components.