Lutheran Pastor Dietrich Bonhoeffer spoke out, plotted against Hitler, and was executed. Also executed was a more obscure but equally courageous professor from the University of Berlin, Albrecht Haushofer.
Like Bonhoeffer, Haushofer was arrested for speaking out. The SS prison guards were required to extract a confession from prisoners before they were hanged or shot, but Haushofer refused. When they removed his body, though, a paper fell out of his pocket. It was his admission of guilt written in the form of a sonnet:
...schuldig bin ich Anders als Ihr denkt.
Ich musste früher meine Pflicht erkennen;
Ich musste schärfer Unheil Unheil nennen;
Mein Urteil habe ich zu lang gelenkt...
Ich habe gewarnt,
Aber nicht genug, und klar;
Und heute weiß ich, was ich schuldig war.
I am guilty,
But not in the way you think.
I should have earlier recognized my duty;
I should have more sharply called evil evil;
I reined in my judgment too long.
I did warn,
But not enough, and clear;
And today I know what I was guilty of.