When he was a medical student at National Taiwan University College of Medicine, he visited Africa as a donor's representative for World Vision's 30-Hour Famine. At the time, Mozambique was in the midst of a civil war and countless people had become refugees. The seeds of compassion that were planted in Chen Chih-cheng's heart prompted him more than a decade later to return Africa with his wife and children.
早在陳志成還是台大醫學院的學生時，就曾以捐款人代表的身份參與世界展望會「飢餓 30」活動赴非洲訪視，當年莫三比克正處於內戰，難民流離失所的悽慘景象，在他心中埋下了悲憫的種子，也催促著他十多年後帶著妻兒重返非洲。