習慣成自然

Simplified: 习惯成自然

xíguànchéngzìrán ㄒㄧˊ ㄍㄨㄢˋ ㄔㄥˊ ㄗˋ ㄖㄢˊ

    • habit becomes second nature to do something as if it were perfectly natural because one is accustomed to it

      saying

Character by character

Saying俗语俗語

Proverb谚语諺語 · In everyday use

Literally
habit becomes nature
Meaning
Once something has become a habit, it feels natural and effortless. Compare 'habit is second nature'.

Sources