Epstein's father was sent by his company to Japan after the outbreak of the World War I; when the German Army approached Warsaw, his mother and Epstein fled and joined him in Asia.
爱泼斯坦的父亲在第一次世界大战爆发后被他所在的公司派往日本；当德军逼近华沙时，爱泼斯坦和他的母亲逃亡到亚洲投奔了他的父亲。