It was perfectly clear to me that this order spelled the death of millions of people. I said to Eichmann, 'God grant that our enemies never have the opportunity of doing the same to the German people', in reply to which Eichmann told me not to be sentimental; it was an order of the Fuhrer's and would have to be carried out.
Quoted in "Gestapo: Instrument of Tyranny" - Page 241 - by Edward Crankshaw - History