Need some help please

So, my husband and I are currently having a friendly debate about weight lifting. I am trying to tell him what I've learned on here about lifting heavy (high weight, low reps), how it is good for toning and how I would like to start doing it once I am able to hit the gym. He is very adamant about the fact that he thinks low weights, high reps, are good for toning. He says it's a "medical fact". I am trying to find something "medical" to get it through his head that the ideas of weight lifting have changed, but he's pretty bullheaded. Anyone have any links to articles with medical proof? I did a quick google search, but didn't find anything yet. I figure you guys might be able to help. He personally doesn't care which I do, and supports me either way, but I like to prove him wrong Thanks in advance :flowerforyou:

Edited to change some wording so there wasn't any confusion