Habit becomes nature
If we get used to the regularity of things' development and the way of doing things, it will be very difficult to change and it will become a very natural thing.
source
In the biography of Jia Yi in Hanshu: "less success is like nature, habit is like nature." According to the 72 disciples' interpretation of Confucius' family language, it is said that "if you are less successful, you will have a good nature; if you are used to it, it will be natural."
Examples
To adjust and work is to seek neutralization, balance and nature -- here is the so-called "habit becomes nature" (Zhu Ziqing's Renhua)
grammar
Subject predicate type; as object, clause; refers to the habit of a long time
Habit becomes nature
The east wind blows on the ear - dōng fēng chuī mǎ ěr
fit in exactly with one 's wishes - zhèng zhòng jǐ huái
take a share of the spoils without participating in the robbery - zuò dì fēn zāng