"Eat and drink water" tells us that a gentleman has ideals and ambitions and will not always run around for his own food and clothing. Confucius said, "Eat less and drink more, bend your arms and pillow it, and have fun." Unjust wealth is like a cloud to me. "Confucius ate coarse rice, drank boiled water, slept without a pillow, and used his arm as a pillow.

The joy of life is in it. If wealth is obtained by unreasonable means, he doesn't like it at all. Just like the clouds in the sky, the joy of life will soon disappear, so don't bear it.

Confucius strongly advocated peace and happiness, "scrimping on food and clothing, bending your arms and resting on your pillow", which is a pleasure for people with ideals. At the same time, he also pointed out that he resolutely refused to accept these things as clouds in the sky.

This thought deeply influenced ancient intellectuals and was accepted by ordinary people.