Communists must always go into the why's and wherefore's of anything, use their own heads and carefully think over whether or not it corresponds to reality and is really well founded; on no account should they follow blindly and encourage slavishness.
Mao ZedongThe comrades throughout the Party must take all this fully into account and be prepared to overcome all difficulties with an indomitable will and in a planned way. The reactionary forces and we both have difficulties. But the difficulties of the reactionary forces are insurmountable because they are forces on the verge of death and have no future. Our difficulties can be overcome because we are new and rising forces and have a bright future.
Mao ZedongAt certain times in the revolutionary struggle, the difficulties outweigh the favorable conditions and so constitute the principal aspect of the contradiction and the favorable conditions constitute the secondary aspect. But through their efforts the revolutionaries can overcome the difficulties step by step and open up a favorable new situation, thus a difficult situation yields place to a favorable one.
Mao Zedong