病从口入，祸从口出 (病從口入，禍從口出) bìng cóng kǒu rù, huò cóng kǒu chū

bìng cóng kǒu rù, huò cóng kǒu chū phrase Illness enters by the mouth, trouble comes out by the mouth . A loose tongue may cause a lot of trouble.
Domain: Proverb 谚语
Notes: (CC-CEDICT '病從口入，禍從口出')