The first task that confronts us here is to clean up Moscow, to put an end to the filth and state of neglect into which it has sunk.
Only when we have solved the problem of grain shall we have a socialist foundation.
Either the lice will defeat socialism, or socialism will defeat the lice!
Coal is the bread of socialist industry.
Electrification based on the Soviet system will mean the complete success of the foundations of communism in our country.
The age of steam is the age of the bourgeoisie, the age of electricity is the age of socialism.
Lenin, Collected Works, vol. 30, pp. 184, 224, 334, 368, 414.