Kant did think he had a moral route back to rational faith in God, for those who need it, and he thought that at some level, we all do need something like it.

Fichte would identify all states of our minds with states of our body - perhaps not merely of our brain, but the whole body as an acting organism.

We usually can't know how, and we probably should not even ask, how our lives contribute to a better world.

No theory about our bodies as mere objects of observation and calculation (as distinct from partners in communicative interaction, assumed to be free) can comprehend human nature.

It was an important part of Mendelssohn's philosophical and religious view that the traditional rationalist proofs for God's existence should be sound an convincing. Kant thought they were not. So Kant's critique was world-shaking for Mendelssohn.

Kant did think he had a moral route back to rational faith in God, for those who need it, and he thought that at some level, we all do need something like it.

Descartes recommended that we distrust the senses and rely on the ... use of our intellect.