And standing there, facing the pure, horrifying precision, I came to realize the obviousness of the truth.

10 seconds sound clip from the The Matrix movie soundboard.

You can hear this line at 00:43:09 in the Blu-ray version of the movie.

Quote context

[...]

- The human body generates more bio-electricity than a 120-volt battery. And over 25000 BTUs of body heat.

- Combined with a form of fusion, the machines had found all the energy they would ever need.

- There are fields, Neo, endless fields where human beings are no longer born. We are grown.

- For the longest time, I wouldn't believe it.

- And then I saw the fields with my own eyes, watched them liquefy the dead so they could be fed intravenously to the living.

- And standing there, facing the pure, horrifying precision, I came to realize the obviousness of the truth.

- What is the Matrix? Control.

- The Matrix is a computer-generated dream world built to keep us under control in order to change a human being into this.

- No. I don't believe it. It's not possible.

- I didn't say it would be easy, Neo. I just said it would be the truth.

[...]