He had such a knowledge of the dark side, he could even keep the ones he cared about from dying.

Palpatine Darth Sidious (Ian Mcdiarmid)

13 seconds sound clip from the Star Wars: Episode III - Revenge of the Sith movie soundboard.

You can hear this line at 00:46:43 in the Blu-ray version of the movie.

Quote context

[...]

- And the Jedi don't?

- The Jedi are selfless. They only care about others.

- Did you ever hear the tragedy of Darth Plagueis the Wise?

- No.

- I thought not. It's not a story the Jedi would tell you.

- It's a Sith legend.

- Darth Plagueis was a dark lord of the Sith so powerful and so wise, he could use the Force to influence the midi-chlorians to create life.

- He had such a knowledge of the dark side, he could even keep the ones he cared about from dying.

- He could actually save people from death?

- The dark side of the Force is the path way to many abilities some consider to be unnatural.

- What happened to him?

- He became so powerful, the only thing he was afraid of was losing his power. Which eventually, of course, he did.

[...]