周而复始 (zhōu ér fù shǐ) | Meaning: lit. the cycle comes back to the start (idiom); to move in circles | Chinese Idiom with Pinyin & Origin

lit. the end comes back to the start (idiom); the wheel comes full circle终而复始zhōng ér fù shǐ

to cycle · to circulate · circle · loop循环xún huán

when things reach an extreme, they can only move in the opposite direction (idiom)物极必反wù jí bì fǎn

lit. the cycle comes back to the start (idiom); to move in circles · the wheel comes full circle