Lenin (second row third from right), Bukharin (second row far right), and Trotsky with delegates to the First Comintern Congress in Moscow, 1919 Published May 1, 2015 at 2814 × 1989 in Nikolai Bukharin on the criterion of practice in epistemology ← Previous Next → With lightning telegrams: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Tumblr (Opens in new window) Tumblr More Share on Reddit (Opens in new window) Reddit Share on Pinterest (Opens in new window) Pinterest Like this:Like Loading...