For years, I've tried to capture him, and I've come close, so very close. But each time, he's narrowly evaded my grasp.

9 seconds sound clip from the The Great Mouse Detective movie soundboard.

You can hear this line at 00:11:21 in the Blu-ray version of the movie.

Quote context

[...]

- Know him? That bat, one Fidget, by name, is in the employ of the very fiend who was the target of my experiment! The horror of my every waking moment.

- The nefarious Professor Ratigan!

- Uh... Ratigan?

- He's a genius. A genius twisted for evil. The Napoleon of crime.

- As bad as all that, eh?

- Worse!

- For years, I've tried to capture him, and I've come close, so very close. But each time, he's narrowly evaded my grasp.

- Not a corner of London's safe while Ratigan's at large.

- There's no evil scheme he wouldn't concoct! No depravity he wouldn't commit.

- Who knows what dastardly scheme that villain may be plotting, even as we speak?

- Quite an ingenious scheme, eh? And aren't you proud to be a part of it?

[...]