On the couplets in the Book of Commandments

The Book of Commandments is a letter written by Zhuge Liang, a statesman in the Three Kingdoms Period, to his son Zhuge Zhan before he died.

Its text is as follows:

A gentleman's journey is quiet to cultivate one's morality, and frugal to cultivate one's morality. Not cold, not awake, not quiet, not far away. If you study quietly, you must study. If you don't study, you won't learn widely. If you have no ambition, you can't succeed. If you are slow, you can't be energetic, and if you are dangerous, you can't be radical. Time goes by, meaning goes by, and then becomes withered, not meeting the world, and staying in a poor house sadly. What will happen?

The whole article is basically written in a dual form, such as "quiet to cultivate one's morality, frugality to cultivate one's morality" and so on.

I saw the following couplet somewhere, maybe it has something to do with it.

The first part: discipline and book are quiet to cultivate one's morality, and frugality to cultivate one's morality.

Bottom line: Being the master of your own house depends on leisure, enlightenment and intimacy.