I know it seems hopeless, but the truth is you won't always be around to protect him.

6 seconds sound clip from the How to Train Your Dragon movie soundboard.

You can hear this line at 00:11:20 in the Blu-ray version of the movie.

Quote context

[...]

- When I was a boy, my father told me to bang my head against a rock and I did it. I thought it was crazy, but I didn't question him. And you know what happened? That rock split in two.

- It taught me what a Viking could do. He could crush mountains, level forests, tame seas!

- Even as a boy, I knew what I was, what I had to become.

- Hiccup is not that boy.

- You can't stop him. You can only prepare him.

- I know it seems hopeless, but the truth is you won't always be around to protect him.

- He's going to get out there again. He's probably out there now.

- Oh, the gods hate me.

- Some people lose their knife or their mug. Not me. I manage to lose an entire dragon.

- Oh, wow. I did it. Ohh, I did it. This... This fixes everything! Yes!

[...]