Take a good look. One day the war will be over and I hope that the people who use this bridge in years to come will remember how it was built and who built it.

— Colonel Nicholson (Alec Guinness)

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

You can hear this line at 01:31:22.486 in the Blu-ray version of the movie.

Quote context

[...]

- Must we build them a better bridge than they could have built for themselves?

- If you had to operate on Saito, would you do your best or would you let him die?

- Would you prefer to see this battalion disintegrate in idleness?

- Would you have it said that our chaps can't do a proper job?

- Don't you realize how important it is to show these people that they can't break us, in body or in spirit?

- Take a good look. One day the war will be over and I hope that the people who use this bridge in years to come will remember how it was built and who built it.

- Not a gang of slaves, but soldiers. British soldiers, even in captivity.

- Yes, sir.

- You're a fine doctor, but you've a lot to learn about the army.

- Hold him! Hold him! Use your boot! Get your boot in there, will you?

(MAN WHISTLES TO LADY)

[...]