Unicorn blood can sustain me, but it cannot give me a body of my own. But there is something that can.
12 seconds sound clip from the Harry Potter and the Sorcerer's Stone movie soundboard.
You can hear this line at 02:17:06 in the Blu-ray version of the movie.
Quote context
[...]
- Master, you are not strong enough.
- I have strength enough for this.
- Harry Potter... we meet again.
- Yes. You see what I've become? See what I must do to survive? Live off another. A mere parasite.
- Something that, conveniently enough, lies in your pocket.
- Don't be a fool. Why suffer an horrific death when you can join me and live?
- Never!
[...]