Master Qu in that year presented the Sao of Chu; In his hand he grasped a killing blade. Mugwort and wormwood were flourishing in excess, [fragrant] … - Mao Zedong

Wind will not cease even if trees want to rest.

学习有两种态度。一种是教条主义的态度，不管我国情况，适用的和不适用的，一起搬来。这种态度不好。另一种态度，学习的时候用脑筋想一下，学那些和我国情况相适合的东西，即吸取对我们有益的经验，我们需要的是这样一种态度。

When a task, no matter which, has to be performed, but there is as yet no guiding line, method, plan or policy, the principal and decisive thing is to decide on a guiding line, method, plan or policy. When the superstructure (politics, culture, etc.) obstructs the development of the economic base, political and cultural changes become principal and decisive. Are we going against materialism when we say this? No. The reason is that while we recognize that in the general development of history the material determines the mental and social being determines social consciousness, we also--and indeed must--recognize the reaction of mental on material things, of social consciousness on social being and of the superstructure on the economic base. This does not go against materialism; on the contrary, it avoids mechanical materialism and firmly upholds dialectical materialism.