酒不醉人人自醉

酒不醉人人自醉

Literally means:

it's not the wine that intoxicates but the drinker who gets himself drunk

Actually means:

醉 here means intoxication, not alcoholism-induced stupor.

This phrase means that the drinker is intoxicated not because of the wine. It refers to self-intoxication because of excessive obsession for something or somebody.

醉，这里指陶醉，而不是喝酒过度而致神志不清。

酒不醉人人自醉，酒没使人醉，而是人自己醉了。指对事物或人过分感兴趣所引起的自我陶醉。