And in studying, you must've learned that man is mortal.
5 seconds sound clip from the The Princess Bride (1987) movie soundboard.
You can hear this line at 00:33:07 in the Blu-ray version of the movie.
Quote context
[...]
- You'd like to think that, wouldn't you?
- You've beaten my giant, which means you're exceptionally strong.
- But you've also bested my Spaniard, which means you must've studied.
- And in studying, you must've learned that man is mortal.
- You're trying to trick me into giving away something. It won't work.
- It has worked! You've given everything away! I know where the poison is!
[...]