Philosophy is related to Meaning. Intent is a type of Meaning. Intent is a synonym of Aim. 
Thinking is related to Brain. Brain is a different concept from Mind. Mind is related to Decide. Decide is related to Volunteer. 
Philosophy <--RelatedTo--> Meaning <--IsA-- Intent <--Synonym--> Aim 
Thinking <--RelatedTo--> Brain <--DistinctFrom--> Mind <--RelatedTo--> Decide <--RelatedTo--> Volunteer 