In the book "Talking about Cultivation", the first article is about the way of keeping in good health. Zhang Qun advocated that keeping in good health should start with "sometimes eating properly". He said that he met many friends in his life and he was in good health. However, at a strong and promising age, he was too conceited, or indulged in debauchery, or indulged in eating and drinking, so that he aged before he was old. Therefore, he believes that the way of keeping in good health should always pay attention to moderation in order to come naturally.