I'm busy taking a crash course in German because my company is sending me to Berlin next month to open a branch office.

I had read it in German, loved it, and love it to this day.

In his books, his German name appears alongside those of his children and grandchildren, nowadays written in Hebrew, where dedications were added from generation to generation.

But Professor Einstein knew no English at that time and I knew only two words of German.

That he could give such an answer must be because German was a major European language from which his works could be rendered into other European languages without much difficulty.