VI. The Age of Kant and Goethe
That the highest truths are not truths of knowledge but moral truths is what Kant considered as his discovery. Man has to renounce all insight into a supersensible world, but from his moral nature springs a compensation for this knowledge. No wonder Kant sees the highest demand on man in the unconditional surrender to duty. If it were not for duty to open a vista for him beyond the sensual world, man would be enclosed for his whole life in the world of the senses. No matter, therefore, what the sensual world demands; it has to give way before the peremptory claims of duty, and the sensual world cannot, out of its own initiative, agree with duty. Its own inclination is directed toward the agreeable, toward pleasure. These aims have to be opposed by duty in order to enable man to reach his destination. What man does for his pleasure is not virtuous; virtue is only what he does in selfless devotion to duty. Submit your desires to duty; this is the rigorous task that is taught by Kant's moral philosophy. Do not allow your will to be directed toward what satisfies you in your egotism, but so act that the principles of your action can become those of all men. In surrendering to the moral law, man attains his perfection. The belief that this moral law has its being above all other events of the world and is made real within the world by a divine being is, in Kant's opinion, true religion. It springs from the moral life. Man is to be good, not because of his belief in a God whose will demands the good; he is to be good only because of his feeling for duty. He is to believe in God, however, because duty without God would be meaningless. This is religion within the Limits of Mere Reason. It is thus that Kant entitles his book on religious world conception.