After more than four decades of involvement in the majority of parts of leadership, by identifying, qualifying, training, consulting and developing leaders, to serving, as a pioneer, for all organizations (small and large), I’ve frequently been asked, what I think, to be, even the most important consideration of principle, of contributing efficiently. I’ve detected, and learned, while it’s likely to teach somebody, and furnish them with the necessary and essential abilities, to proceed, sensibly, one must start the process, with a specific sort of mindset, and also attitude. If this must be summed – up, simply, and of course, it’d be, an individual has to be guided by the heart principle, todo, what’s perfect! With that in mind, this guide will attempt to briefly examine, consider, and discuss, with the mnemonic approach, why understanding human character. And/ or that which causes us do, what we do, is crucial and relevant. It is vital to move, in a righteous manner, without having to be self – righteous! How would you know what’s relevant, until/ unless he pays keen attention, to both the advantages and flaws, and the advantages, as well as negatives? Leading must concentrate on being attentive to needs, aims, priorities, and also the assignment of this group! A leader is accountable for effective leadership preparation, and seeking strategic and action plans, together with sustainability, and understanding ramifications, as center components.