I was already over 40 years old when my son was born. We have an old phrase in Chinese to describe my situation- "A father at last in middle age!" My son's name is Zhu Liyi. The "li" in his given name is mandated by Chinese tradition, for it is the first character in the given names of all the male cousins on his father's side.
我年過四十才生下一個兒子，可謂「中年得子」。