The idiom "nourishing the heart and nature".

Idiom? Live a simple life to show your ambition.

Pinyin dàn bó míng zhì

Explain indifference: life is simple; Do not pursue fame and fortune; Live a quiet and frugal life to show interest.

The source of Zhuge Liang's book "Commandments" in the Shu Kingdom of the Three Kingdoms: "A gentleman's trip is quiet and healthy, frugal and moral, not indifferent to his ambition, not quiet and not far away."

As for the wild and lonely shore, it is not uncommon to enjoy each other, but to be indifferent to the bright future, quiet and far-reaching, and to show it everywhere.

Idioms cultivate self-cultivation

Pinyin xishnli jieé

Explain how to improve one's moral cultivation and establish noble moral conduct.

From "On Hou Xizhuang and Lu Langzhong's recommendation in Ruzhou": "A scholar is self-disciplined, and he can't meet his bosom friends."