When the speeches of Wilson, Clemenceau, and Lloyd George, the worst of the predators, the wild beasts of imperialism, are repeated here by Martov in the name of the Russian Social Democratic Labour Party … then I say to myself that we have to be on the alert and to realise that the Cheka is indispensable!

Address to the Seventh All-Russia Congress (5 December 1919); Collected Works, Vol. 30.