His actions in the end were morally questionable at best, but he wanted to prevent what he saw coming (even if those efforts were ultimately for naught).

This a both sad and terrible time. I always thought that German citizens should have stopped the Nazis, understand better now why they couldn't.

I don't think that thinking will help me.

The reference is from the iconic ending of that movie.

I hate to do a spoiler,,,, why not google it and find out more?? or better yet watch it.
Twas shocking to me,,,, I totally did not see this ending coming.

And how appropriate for these times.