The ego would rather we not concentrate on the always now. It enjoys making judgments on the past. In our teaching, each person we deal with, we interact with in the now moment. We can recognize the unconditional goodness of the human condition in everyone. From here, we can impart our knowledge and share our wisdom as teachers, parents and educators.
Happiness becomes our decision to let go of judgments based upon the past.
Teaching becomes an exercise in joining minds. We are all familiar with philosophy. The world has many wonderful schools of thought. Much of the world's wisdom philosophy is similar. Whether considering the Tao path, emanating love through the Christian heart, training the Buddhist mind, etc., we need to distinguish between philosophy and vision.