After more than four years of participation in nearly all parts of leadership, by identifying, qualifying, training, consulting and developing leaders, to serving, as a leader, for all organizations (large and small), I’ve frequently been asked, what I think, to be, the most significant factor of rule, of contributing efficiently. I have detected, and learned, while it is likely to teach somebody, and supply them, with the needed and necessary skills, to proceed, wisely, one must start the method, with a specific sort of mindset, and attitude. If this must be summed – up, only, and of course, it would be, one has to be directed by the core principle, todo, what’s suitable! Bearing that in mind, this guide will attempt to briefly examine, consider, and discuss, together with the mnemonic approach, why understanding human character. And/ or what causes us do, what we do, is most crucial and relevant. It is vital to proceed, in a righteous fashion, without being self – righteous! Just how might one know what’s relevant, until/ unless he pays keen attention, to the advantages and flaws, and also the positives, as well as negatives? Leading must focus on being responsive to demands, aims, priorities, and also the mission of this bunch! A pioneer is accountable for effective leadership preparation, and seeking strategic and action plans, with sustainability, and understanding consequences, as core components.