This steel is my word. I am too old to break it.
9 seconds sound clip from the Waterloo (1970) movie soundboard.
You can hear this line at 00:49:47.410 in the Blu-ray version of the movie.
Quote context
[...]
- Where are the reinforcements you promised me?
- Don't you dare criticize me! Don't you dare!
- Marshal, the sector is broken. I have ordered a retreat.
- Retreat? I am 72 and a proud soldier.
- This steel is my word. I am too old to break it.
- If Wellington runs for the coast, none of us will get home to Berlin. The logical road is Namur.
- Nonetheless, because I have served you before, sir, I have ordered the retreat to Wavre.
- You may still cooperate with Wellington, but God help us if he does not stand.
[...]