Purpose is a synonym of Intend. Intend is related to Thought. Thought is related to Theory. Theory is related to Fundamental. 
Learn is a synonym of Determine. Determine is a synonym of Decide. Decide entails/necessarily involves Debate. 
Purpose <--Synonym--> Intend <--RelatedTo--> Thought <--RelatedTo--> Theory <--RelatedTo--> Fundamental 
Learn <--Synonym--> Determine <--Synonym--> Decide --Entails--> Debate 