Zhu Jingke works as a math teacher in a Jiangliu primary school in Anhui Province, and has held his position for 35 years, despite having ankylosing spondylitis, a severe back condition. Zhu cannot stand up straight or sleep lying down, but that hasn't stopped him from traveling 35 kilometers to school each day and teaching a full course load.

Visit the original source and full text: Shanghaiist