 Various biographers have stated that Lenin's writings were treated in a manner akin to holy scripture within the Soviet Union, while Pipes added that "his every opinion was cited to justify one policy or another and treated as gospel".Stalin systematised Leninism through a series of lectures at the Sverdlov University, which were then published as "Questions of Leninism".Stalin also had much of the deceased leader's writings collated and stored in a secret archive in the Marx–Engels–Lenin Institute.