When you put your hand into a bunch of goo that a moment before was your best friend's face, you'll know what to do.

14 seconds sound clip from the Patton (1970) movie soundboard.

You can hear this line at 00:04:16 in the Blu-ray version of the movie.

Quote context

[...]

- We're not just going to shoot the bastards. We're going to cut out their living guts and use them to grease the treads of our tanks.

- We're going to murder those lousy Hun bastards by the bushel.

- Now, some of you boys I know are wondering whether or not you'll chicken out under fire.

- Don't worry about it. I can assure you that you will all do your duty.

- The Nazis are the enemy. Wade into them. Spill their blood. Shoot them in the belly.

- When you put your hand into a bunch of goo that a moment before was your best friend's face, you'll know what to do.

- Now, there's another thing I want you to remember.

- I don't want to get any messages saying that we are holding our position. We're not holding anything. Let the Hun do that.

- We are advancing constantly and we're not interested in holding onto anything except the enemy!

- We're going to hold onto him by the nose and we're going to kick him in the ass.

[...]