Morpheus believed something and he was ready to give his life for what he believed.
6 seconds sound clip from the The Matrix movie soundboard.
You can hear this line at 01:36:27 in the Blu-ray version of the movie.
Quote context
[...]
- They've got Morpheus in a military-controlled building.
- Even if you somehow got inside, those are agents holding him. Three of them.
- I want Morpheus back too, but what you're talking about is suicide.
- I know that's what it looks like, but it's not. I can't explain to you why it's not.
- Morpheus believed something and he was ready to give his life for what he believed.
- I understand that now. That's why I have to go.
- Why? (4)
- Because I believe in something.
- I believe I can bring him back.
[...]