Quietness cultivates one's character, frugality cultivates one's virtue, indifference improves one's aspirations, and tranquility leads to the future. What does this mean?

Use tranquility to cultivate yourself, and use frugality to cultivate your character. Only by looking down on worldly fame and fortune can you express your ambitions, and only by thinking quietly can you achieve lofty goals. (As a gentleman) you should cultivate yourself without being influenced by the outside world, and cultivate your own character through frugality. If you don't take an indifferent attitude towards fame and fortune, you can't keep your ambitions pure. If you don't eliminate external interference, you can't make progress and achieve lofty goals.

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Extended information:?

"The Book of Commandments" is a family letter written by Zhuge Liang, a politician during the Three Kingdoms period, to his son Zhuge Zhan before his death. From the article, we can see that Zhuge Liang is a father with noble character and profound knowledge. His careful teaching and unlimited expectations for his son are all in this book. Through intelligent, rational, concise and rigorous words, the full text expresses the love of fathers all over the world for their children very deeply, and has become a famous article for students of all generations to cultivate themselves and aspire to achieve their goals.

Reference materials: ?Book of Commandments-Baidu Encyclopedia