Question

What idea was common in Plymouth colony but not in Massachusetts bay colony

Answer 1

The Plymouth Colony was mostly Puritan based and at first tried an early idea of communism and they made peace with the Native Americans. The Massachusetts bay Colony however was more into exporting(especially Tobacco) and was the first colony with the rule "if you don't work, you don't eat", there were also huge tensions with the Native Americans at first.

Answer 2

Their idea was that if you don't work, then you dont eat. 
That why in those days people always worked, and knew that if they will be lazy, they won't eat. 
Hope this helps!
-Sammy