He who is valiant and pure of spirit may find the Holy Grail in the Castle of Aaargh.
14 seconds sound clip from the Monty Python and the Holy Grail movie soundboard.
You can hear this line at 01:15:54 in the Blu-ray version of the movie.
Quote context
[...]
- Of course. Joseph of Arimathea!
- It reads, 'Here may be found the last words of Joseph of Arimathea.'
- He who is valiant and pure of spirit may find the Holy Grail in the Castle of Aaargh.
- He must have died while carving it.
[...]