包医百病包治百病bāo yī bǎi bìng

cure all maladies (/complaints); guarantee to cure all diseases; a remedy for all ills; a panacea; a cure all
❍ 直到现在，还有不少的人，把马克思列宁主义书本上的某些个别字句看作现成的灵丹圣药，似乎只要得了它，就可以不费气力地～。(《毛泽东选集》778)Even now,there are not a few people who still regard odd quotations from Marxist-Leninist works as a ready-made panacea which,once acquired,can easily cure all maladies.