I've heard them say that the Emperor has promised an entire hill of gold to anyone who can help him live forever.
7 seconds sound clip from the Princess Mononoke movie soundboard.
You can hear this line at 00:16:58.748 in the Blu-ray version of the movie.
Quote context
[...]
- So you say you're under a curse? So what? So's the whole damn world.
- I was wrong to fight in that village. Two men are dead because of me.
- Samurai thugs. You win some, you lose some.
- My point is, everybody dies, boy. Some now, some later. From brothel girl to Emperor.
- Beautiful bowl. I've seen one other like it.
- Of course, they were all wiped out 500 years ago.
- Don't worry. I won't tell anyone where you're from.
- Anyway, I've got much bigger fish to fry.
[...]