"You talk about your “devotion” to me. Maybe this is a random phrase. Maybe ... But if this is not a random phrase, I would advise you to throw away the “principle” of devotion to persons. This is not a Bolshevik. Have devotion to the working class, its party, its state. It is necessary and good. But do not mix it with devotion to people, with this empty and unnecessary intellectual trinket." - Stalin, Letter to Shatunovsky, August 1930

https://www.marxists.org/russkij/stalin/t13/t13_02.htm