‘Let me warn you, Icarus, to take the middle way, in case the moisture weighs down your wings, if you fly too low, or if you go too high, the sun scorches them. Travel between the extremes. And I order you not to aim towards Bootes, the Herdsman, or Helice, the Great Bear, or towards the drawn sword of Orion: take the course I show you!’.

Metamorphoses, Ovid.