If you have money, go buy nice clothes and drive good cars, but try to keep your diet simple. Eat a little bit of delicious food, and control your cravings. Overeating can shorten your lifespan. There is a saying: "Fasting to eliminate disease, eating less to prolong life." True health preservation is simple—an easy path. Remember not to eat too well, and not to eat too much. As people's material living standards continue to improve, many spend their money not on use but on food. This is a big mistake. Don't think that eating well means better health; in fact, it can put more burden on your digestive system. Look at the truly long-lived people—few rely on "supplements" to reach a hundred years old. Their common traits are often very simple: a plain diet, regular schedule, and about 70-80% full. Light eating is not poverty, but a calmness achieved through long-term self-discipline. Eating is the lowest-cost happiness and the easiest to abuse. True sophistication is having the means to eat richly but choosing to eat with restraint. Focus on enjoyment in spirit, experience, and freedom, rather than piling it into your stomach. Neglecting your mouth is not about self-denial but about enabling a longer-lasting self. True health preservation is never complicated—an easy path is the simplest truth—don't eat too well, don't eat too much.