旧的不去，新的不来 (舊的不去，新的不來) jiù de bù qù, xīn de bù lái

jiù de bù qù, xīn de bù lái phrase If the old doesn't go, the new will not come.; You can't make progress by clinging to old notions.
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '舊的不去，新的不來')