Critique of Practical Reason
Many titles have been used by different authors in reference or as a tribute to Kant's main Critique, or his other, less famous books using the same basic concept, Critique of Practical Reason and Critique of Judgment. Since the 18th-century, books using "critique" in their title became common. Also, when "reason" is added after an adjective which qualifies this reason, this is usually a reference to Kant's most famous book. A few examples: