Oh, they just keep coming back. Every night they're out there planting trees, trying to turn the mountain into a forest again.
8 seconds sound clip from the Princess Mononoke movie soundboard.
You can hear this line at 00:41:50.308 in the Blu-ray version of the movie.
Quote context
[...]
- Young man, like you, I know what rage feels like, and grief and helplessness.
- But you must not take your revenge on Lady Eboshi.
- Life is suffering. It is hard. The world is cursed, but still, you find reasons to keep living.
- I'm sorry. I'm making no sense.
- Stay here. Help me kill the Forest Spirit, Ashitaka.
- You would do that? Kill the very heart of the forest?
- Without that ancient god the animals here would be nothing but dumb beasts once more.
- Princess of the spirits of ghouls, beasts and ancient gods.
[...]