Explain the statement like dissolves like?

Oh, dude, it's like this: "like dissolves like" is just a fancy way of saying that polar substances mix well with other polar substances, and nonpolar substances mix well with other nonpolar substances. It's basically like how introverts hang out with introverts and extroverts hang out with extroverts. So, if you want your substances to get along and mix nicely, just remember: like attracts like!