Even those who have a better grasp of Marxism and are comparatively firm in their proletarian stand have to go on studying, have to absorb what is new and study new problems.

• 即使是对于马克思主义已经了解得比较多的人，无产阶级立场比较坚定的人，也还是要再学习，要接受新事物，要研究新问题。