There's no choice. We have to go on.

3 seconds sound clip from the The Last Unicorn movie soundboard.

You can hear this line at 01:21:33.171 in the Blu-ray version of the movie.

Quote context

[...]

- Haggard has them all now, drifting in and out on the tide for his delight, all but one. That one is the Lady Amalthea.

- Unicorn, mermaid, sorceress, no name you would give her would surprise or frighten me. I love whom I love.

- Well, that's a very nice sentiment. But when I change her back into her true self...

- I love whom I love.

- I heard what you said. I will go no further.

- There's no choice. We have to go on.

- Don't let him change me.

- The Red Bull has no care for human beings. We may walk out past him and get away.

- If we do that, all the unicorns in the world will remain prisoner forever except one, and she will grow old and die.

- Everything dies. I want to die when you die. I'm no unicorn, no magical creature! I'm human, and I love you.

[...]