Answer: there are two actually.
Explanation: One theme is the value of moderation. It is revealed when Icarus ignores his father's warning to fly" at a moderate height," neither too high nor too low. Icarus flies too high and plummets to his death. Another is the theme of not trying to be more than you are like the gods. The people below watching them fly thought they were gods. The temple he built for Apollo could be seen as an apology.
