Kant's 'freedom'

In Kant's writing, freedom is the main component in the progression toward enlightenment. It is interesting to view Kant's idea of freedom in light of our discussion of Rousseau. Kant speaks of freedom as free thinking, a scholarly form of freedom. Freedom of thinking is independant of freedom from society's constraints. In fact, Kant says that freedom of thinking is enabled by adherence to the laws of government.
This is a completely different concept of freedom from that of Rousseau. Rousseau idealizes freedom from all of the constriants and customs of civilized life. He speaks of the state of nature as if it was a euphoric time classified by freedom that can never again be achieved. He says, "savage man will not bend his neck to the yoke which civilized man wears without a murmur." Kant's idea of freedom could not even exist without this societal 'yoke' that is such a burden and an obstacle to Rousseau's 'freedom.' The word and the idea of freedom is classified by completely different terms and ideas in these two texts, and both concepts cannot even exist on the same plane.