Please state at least two central ideas you found interesting in each of these thinkers (eight ideas total)--Kant, Rousseau, Smith, Marx--and tell

Please state at least two central ideas you found interesting in each of these thinkers (eight ideas total)--Kant, Rousseau, Smith, Marx--and tell which thinker/idea you agree with most and why, and which idea/thinker you disagree with most and why.