Final answer:
Immanuel Kant's work delves into establishing the supreme principle of morality through rational reflection, contributing significantly to philosophical ethics.
Explanation:
Immanuel Kant's "Groundwork of the Metaphysics of Morals" primarily focuses on the establishment of the supreme principle of morality through rational reflection, aiming to provide a foundational basis for ethics.
The work does not offer specific advice for particular situations but delves into philosophical exploration to determine the ultimate moral principle.
Kant's ethical works like the "Groundwork of the Metaphysics of Morals" are pivotal in the realm of philosophical ethics and have enduring influence in the field.
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