[eastsider]

Kant's categorical imperative cannot be understand in isolation from his Critique of Pure Reason -- specificially, the concept of causation, as well as the section of the Transcendental Dialectic in which he raises and solves the problem of determinism and freedom of will.

[thinktwice]

Kant's categorical imperative cannot be understand in isolation from his ...

Kant's Critique of Pure Reason can't be understood by anyone -- it defies intelligence.

I actually suspect that Kant (who was a nice guy, a good teacher, , and the TOP philosopher in Germany at the time) wrote the Critique as a prank, to satirize the German custom of idolizing anything produced by "The Master" in any given field.