Yon gray lines that fret the clouds are messengers of day.
5 seconds sound clip from the Julius Caesar (1953) movie soundboard.
You can hear this line at 00:32:39 in the DVD version of the movie.
Quote context
[...]
- This, Cinna. And this, Metellus Cimber.
- What watchful cares do interpose themselves betwixt your eyes and the night?
- Here lies the east. Doth not the day break here?
- No.
- Yon gray lines that fret the clouds are messengers of day.
- You shall confess that you are both deceived.
- Here, as I point my sword, the sun arises.
- Give me your hands all over, one by one.
- And let us swear our resolution.
- So let high-sighted tyranny range on till each man drop by lottery.
[...]