酒不醉人人自醉心不伤人人自伤
[jiŭ bù zuì rén rén zì zuì xīn bù shāng rén rén zì shāng]
'Wine does not make man drunk - Man gets himself drunk; heart is not hurt by others - People injure their hearts themselves' illustrates the wisdom that intoxication is self-induced rather than forced by substances; also applies to emotional wounds inflicted through personal choice rather than external sources.