I was a coward. I was weak. I wouldn't kill a dragon.
6 seconds sound clip from the How to Train Your Dragon movie soundboard.
You can hear this line at 01:08:29 in the Blu-ray version of the movie.
Quote context
[...]
- Why is this so important to you all of a sudden?
- Because I want to remember what you say right now.
- I was a coward. I was weak. I wouldn't kill a dragon.
- You said wouldn't that time.
- Whatever! I wouldn't! Three hundred years, and I'm the first Viking who wouldn't kill a dragon.
- So?
- I wouldn't kill him because he looked as frightened as I was. I looked at him and I saw myself.
[...]