Zheng was born on 8 February 1902 in present-day
Shunde,
Guangdong. His father died when Zheng was six years old. At the age of nine, Zheng began attending a private school and at ten years old moved to a school in
Beijiao. Zheng spent 1916 at school in Hong Kong, returning to
Guangzhou the next year, and soon found work as a journalist. He was accepted into a normal school affiliated with
National Guangdong University in 1918, and became active in student government, while also serving on the staff of several student publications. Zheng's academic performance caught the attention of school president , who suggested that Zheng join the
Kuomintang. Zheng became a member of the party in 1923. In January 1924,
Sun Yat-sen held lectures on his political philosophy, the
Three Principles of the People, at Zheng's school. Upon graduation, Zheng chose to further his studies in education in Japan. Upon his return, Zheng worked as a mathematics teacher and department director at National Guangdong University. ==Time in Europe==