The author, Rev. Yun Z Qiu, is an ordained Presbyterian Minister with a Master of Divinity Degree from the Princeton Theological Seminary, 1985. Rev. Qiu obtained a Master’s Degree of Mathematics and a Master’s Degree of Mechanical Engineering from Wayne State University in 1988 and 1990 respectively. Rev. Qiu worked for the Math Department of Wayne State University as an adjunct faculty for over 20 years and for the Water Department of the City of Detroit as a mechanical engineer for almost 20 years.