Communists must listen attentively to the views of people outside the Party and let them have their say. If what they say is right, we ought to welcome it, and we should learn from their strong points; if it is wrong, we should let them finish what they are saying and then patiently explain things to them.
Mao ZedongWe can learn what we did not know. We are not only good at destroying the Old World, we are also good at building the new.
Mao ZedongIt is necessary to master Marxist theory and apply it, master it for the sole purpose of applying it. If you can apply the Marxist-Leninist viewpoint in elucidating one or two practical problems, you should be commended and credited with some achievement.
Mao Zedong