Because his own father died when he was nine years old, Liu was raised by his widowed mother. While still a child, a fire completely destroyed the family's property. They lived in poverty and Liu relied entirely upon his own force of will, studying with great diligence, striving to get ahead.
由於自己的父親在他九歲時逝世，由寡母撫養長大，其間曾因火災，使得家業全毀，生活貧困，全仗著意志力，苦讀、奮鬥，力爭上游。