Now, there are two different attitudes towards learning from others. One is the dogmatic attitude of transplanting everything, whether or not it is suited to our conditions. This is no good. The other attitude is to use our heads and learn those things that suit our conditions, that is, to absorb whatever experience is useful to us. That is the attitude we should adopt.
Mao ZedongWe are indebted to Marx, Engels, Lenin and Stalin for giving us a weapon. The weapon is not a machine-gun, but Marxism-Leninism.
Mao Zedong