Marx and the Serious Question of Private Property "...life consists before all in this: that a living creature is at each moment itself, and yet something else. Life is therefore also a contradiction, present in process, continually occurring and solving itself. And as soon as the contradiction ceases, life ceases.." Engels
We have wave-particle duality theory and Douglas Hofstadter, and yet we can't find a way out of contradiction? Maybe atomist were right and there isn't real physical change. Just rearrangments. This is why I recommend Heidegger, just as a philosopher, and his views on pre-Socratics to Marxists. But eh yes Lenin had many philosophical texts to tempt them