不折腾原则是陈云与李先念在改革开放之初率先提出来的.李先念还就不折腾的类别、意义、重点时段与保障措施等方面作了较为系统的阐述.不折腾原则的提出,直接推动了调整、改革、整顿、提高八字方针的出台,促使国民经济进行重大调整进而走上良性发展的道路,保障了我国改革开放的顺利进行.,The principle ofno more flip-flopswas first put forward by Chen Yun and Li Xiannian at the beginning of reform and opening up.Li Xiannian also made a rather systematic exposition of this principle’s categories,meaning,focal period of time and safeguarding measures.The launching of this principle directly contributed to the adoption of the policy of readjustment,restructuring, consolidation and improvement which guided major changes in national economy,led it onto the road of healthy development and ensured the smooth progress of reform and opening up.