Both Plato and Aristotle have something to say about admiration. But in order to know where to look, and in order to appreciate the force of their remarks, we need to sketch a little of the ethical background that they presuppose. I begin, therefore, with ancient Greek ethics in the wider sense, and discuss the treatment of admiration and related attitudes by Homer, Herodotus, and other pre-Platonic sources. Then I turn to the views of Plato, Adam Smith, Aristotle and Cicero. This order of discussion allows us to see why admiration is both morally significant and, in some respects, morally unreliable.