Brass and iron are no substitute for feathers, but he's very skilled and ingenious.
8 seconds sound clip from the Clash of the Titans (1981) movie soundboard.
You can hear this line at 01:03:16 in the Blu-ray version of the movie.
Quote context
[...]
- Replace it with some other gift.
- Give Perseus your owl. It is all-knowing, all-seeing.
- Give it to him. It is my wish... My command.
- Never!
- Hephaestus will do what he can.
- Brass and iron are no substitute for feathers, but he's very skilled and ingenious.
- Let great Zeus rage till even Olympus shakes.
- But I will never part with you, my beloved Bubo. Bubo.
- Nothing. Nothing. We could be lost for days in this desolation.
- Look!
- It's heading this way! It's flying straight for us.
[...]