From an Ideal Criticism to a Realistic Criticism——On the Difference and Thematic Meanings of Kant's and Marx's Theories about "Critical Philosophy"

Both Marxism and Kantism are called philosophies,but their critical meanings are different or even opposite.The internal relation of the two philosophies is that Kant advocates an ideal criticism while Marx upholds a realistic criticism.The main difference of the two criticisms lies in their different meanings,objects,purposes,methods and consequences. A comparative study of the two critical philosophies clearly presents Marx's revolution in philosophy.