 Iamblichus is known for something that we should call ‘plagiarism’: he often quotes without attribution. This cannot have seemed in any way wrong to him: one of his quotations is a longish stretch from Plato’s Republic, and he is not, of course, claiming that for his own. Presumably it is an act of homage: Iamblichus is thinking that he can certainly not do better for what he wants to say than Plato, so he, with reverence but not attribution, quotes. The hope is that he is doing this in iv. There we read: