He was an eminent scholar and teacher in American academia for more than half a century. He published hundreds of original papers, articles and books covering a wide range of interrelated subjects—from statistical variance, to systems and systems thinking, to human psychology. He was a trusted consultant to influential business leaders, powerful corporations and governments around the world. This includes inspiring and guiding the spectacular rise of Japanese industry after World War II, and the resurgence of the American automobile industry in the late 1980s.

The impact of his revolutionary ideas has been compared to those of Copernicus, Darwin and Freud. Others have referred to him as the father of the third phase of the Industrial Revolution.

He was a visionary, whose tireless quest for the “truth” and unwavering belief in "continual improvement" led to a set of transformational theories and teachings that changed the way we think about quality, management and leadership. Throughout his career, he remained a gentleman devoted to family, supportive of colleagues and friends, and always true to his word and beliefs.