After more than four decades of involvement in nearly all parts of leadership, from identifying, qualifying, training, consulting and developing pioneers, to serving, as a leader, for all organizations (large and small), I’ve often been asked, what I believe, to be, even the most significant consideration of principle, of leading effectively. I’ve detected, and heard, whether it is likely to teach some one, and furnish them, with the needed and necessary skills, to move, sensibly, an individual must start the procedure, with a specific kind of mindset, and also attitude. If that must be summed – up, simply, and of course, it would be, one must be directed by the heart principle, todo, what’s proper! Keeping that in mind, this article will try and briefly examine, consider, and talk, with the mnemonic approach, why understanding human character. And/ or that which causes us do, that which we do, is most important and relevant. It is vital to proceed, in a righteous fashion, without having to be self – righteous! Just how could you know what’s relevant, until/ unless he pays keen attention, to both the strengths and flaws, and also the advantages, as well as negatives? Leading must focus on being attentive to needs, goals, priorities, and also the assignment of this bunch! A leader is responsible for effective leadership preparation, and seeking strategic and action plans, together with sustainability, and understanding ramifications, as center components.