It is necessary — secretly and urgently to prepare the terror. And on Tuesday we will decide whether it will be through SNK or otherwise.

Memorandum to Nikolay Nikolayevich Krestinsky (3 or 4 September 1918) while recovering from an assassination attempt by Socialist-Revolutionary Fanni Kaplan on 30 August 1918; published in The Mitrokhin Archive: The KGB in Europe and the West (1999) Christopher Andrew and Vasili Mitrokhin, p. 34.