That book attempts to prove the existence of a priori synthetic propositions.
One work by this man claims that one's level of aesthetic appreciation is dependent on which of the four humors dominates. Another work by this man bemoans the rich who don't donate to charity in a section that claims that men swayed by external influences are in a state of ethical "heteronomy". In that work, this philosopher outlined four maxims that all morals must fulfill. This author of On the (*) Beautiful and Sublime used linguistically equivalent phrases to illustrate analytic propositions that are true in and of themselves. That book attempts to prove the existence of a priori synthetic propositions. For 10 points, name this German philosopher who wrote Groundwork for the Metaphysics of Morals and Critique of Pure Reason and formulated the categorical imperative.
One work by this man claims that one's level of aesthetic appreciation is dependent on which of the four humors dominates.
Immanuel Kant