Following four years of participation in the majority of parts of leadership, by identifying, qualifying, training, developing and consulting pioneers, to serving, being a leader, for all associations (small and large), I have often been asked, what I consider, to be, the most significant thing of rule, of contributing effectively. I’ve detected, and heard, whether it’s likely to train someone, and supply them, with the needed and necessary skills, to move, sensibly, one has to start the method, having a specific kind of mindset, and also attitude. If that must be summed – up, simply, and essentially, it’d be, one has to be guided by the heart principle, to do, what’s proper! Bearing that in mind, this article will try and briefly examine, consider, and discuss, with the mnemonic strategy, why understanding human nature. And/ or that which makes us do, what we do, is most crucial and important. It is vital to proceed, in a righteous fashion, without being self – righteous! How would one know what is relevant, until/ unless he pays keen attention, to both the strengths and weaknesses, and the advantages, as well as drawbacks? Leading must focus on being attentive to needs, goals, priorities, and also the assignment of the group! A pioneer is accountable for effective leadership planning, and seeking strategic and action plans, with sustainability, and understanding ramifications, as core components.