The significance of a grain of rice to help the world

It means that someone is ambitious and hopes to make people in the world live a happy life through their own efforts. First, quantifiers, rice originally meant rice and paddy, here refers to personal ability, economy means relief and rescue, here the world refers to people all over the world, and the liver and gallbladder are important organs in the human body, here refers to making up your mind.

This pair of couplets is a description of Yuan Longping and Wu Mengchao. One is called "the father of hybrid rice", the other is called "the father of hepatobiliary surgery in China", the other is called "piercing the liver and draining the gallbladder, and the doctor is kind-hearted", and the other is called "one meter helps the world, and thousands of families have food". Both of them are experts in their respective fields.