There was a very thrifty man in Lu state. One day, he made some food with a pottery cooker. He thought it tasted great, so he put some in a pottery pot and sent it to Confucius. Confucius was very happy as if he received valuable gifts like pigs, sheep, and cows. Zilu was puzzled and asked, "Sir, why are you so happy when you received such ordinary food with simple pottery?" Confucius said, "People who often offer advice to the monarchs often think of their monarchs in their hearts; people who eat delicious food think of their parents in their hearts. I don't care whether the food he sent to me is delicious or not. I'm happy because he thought of me when he has nice food! "