Palpatine: Did you ever hear the tragedy of Darth Plagueis The Wise?

Anakin: No?

Palpatine: 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 midichlorians to create life… He had such a knowledge of the dark side, he could even keep the ones he cared about from dying.