A student thanks Zhu Dong for his help by placing a red scarf around his neck at Ersaixiang Primary School, Yuexi county, Southwest China's Sichuan province, on Jan 8, 2013. Zhu, a 44-year-old railway policeman, has been helping students for the past seven years in his spare time, donating clothes and other daily necessities worth more than 500,000 yuan ($80,450). [Photo/Xinhua]