He doesn't know it, but I do. You'd leave your own mother here if the rules called for it.

— Commander Shears (William Holden)

5 seconds sound clip from the The Bridge on the River Kwai movie soundboard.

You can hear this line at 02:00:47.017 in the Blu-ray version of the movie.

Quote context

[...]

- You're going to leave me here.

- If you stop, we stop.

- You can't study the layout of the bridge after dark. You've got to get there before sundown.

- But, sir, when the job's done, who knows if we can return by this route or whether we could find you if we did?

- If you were in my shoes, I wouldn't hesitate to leave you, and you know that.

- He doesn't know it, but I do. You'd leave your own mother here if the rules called for it.

- You'll go on without me. That's an order.

- You're in command now, Shears.

- I won't obey that order.

- You make me sick with your heroics.

[...]