It means that people are enthusiastic and caring, and do things without asking for anything in return, expressing a noble spirit of selfless dedication! This is a famous saying in education, especially when a teacher spreads love to students without any utilitarian meaning

This famous saying from the famous educator Mr. Tao Xingzhi expresses his teaching attitude and is also his school philosophy. ——Expressing a noble spirit of selfless dedication! It means very noble, it's all about giving and nothing in return.

This sentence comes from the couplet inscribed by Mr. Tao Xingzhi for a new primary school founded by one of his disciples: On June 6, 1929, Xin'an Primary School in Huai'an, Jiangsu Province was born, and Mr. Tao personally served as the honorary principal. Principal Tao wrote a couplet for Xin'an Primary School: "Hold a heart and don't take half a blade of grass with you."