Another followup, this time to my question about a Bertolt Brecht quote:
This quote is (in its entirety) a poem by Brecht called Motto, which can be found in Bertolt Brecht: Poems 1913-1956.
The German original:
In den finsteren Zeiten / Wird da auch gesungen werden?
Da wird auch gesungen werden / Von finsteren Zeiten.

Good for you! I always thought this was out of “Mutter Courage” – or that’s the play I have seen the quote attributed to most often.
Stephen, welcome and thanks for your comment.