Complex sentence: He graduated from Princeton University in 1963 and received a PhD in 1969 from Yale, and was deputy director of development and trade research at the office of the assistant secretary for international affairs at the United States Department of the Treasury from 1971--1973.
Split into simpler sentences: He graduated from Princeton University in 1963 and received a PhD in 1969 from Yale. Cline was deputy director of development and trade research at the office of the assistant secretary for international affairs at the United States Department of the Treasury from 1971--1973.