“Ipse dixit” is a Latin phrase that means “He himself said it” or “He said it himself” in English. This phrase is used to stress that a statement or claim is based only on the authority or assertion of a specific person, without providing any further evidence or support. It suggests that the statement is accepted or believed simply because of who said it, rather than because it has been proven or demonstrated to be true. In modern times, “ipse dixit” is commonly used to criticize arguments that rely on authority or hearsay instead of verifiable evidence.