CPSU had maintained power for 73 years, however, it failed to solve the issue of how to rightly guide social sciences, that is both a historical pity and a historical tragedy.

• 苏共执政长达 73年之久 ,没有能够解决如何正确领导社会科学的问题 ,这是历史的遗憾 ,也是历史的悲剧。