Dear Mama,

I want you and Papa to know that you are constanly in  my thoughts, and I thank God for all you have been to me and the rest of the family. I know you have always lived for us, and have never had a life of your own.

And that is why there is no one else with whom I can share all that I am going through.

(Dietrich Bonhoeffer: A Brief Life by Renate Bethge, 6. The letter was dated December 28, 1944).