Kant
Who could have talked Kant out of leaving his ethical mark when no-one before him had been more rigorous and seemingly self-doubting to the point of honesty?
Kant is too often setup as an opposition to Hume's emotional basis for morality. Kant incorporates the physical felt of Hume's foundation into his system. This can be seen in Kant's notion of acting out of respect for the law.
Reason delivers a maxim that physically moves the subject.
Every insanity has its Kantian nest of clausality.
The rules are in themselves; a kantian place of pure abstraction that is real.