A man who has tasted with profound enjoyment the pleasure of agreeable society will eat with a greater appetite than he who rode horseback for two hours. An amusing lecture is as useful for health as the exercise of the body.
Immanuel KantPhilosophy stands in need of a science which shall determine the possibility, principles, and extent of human knowledge à priori.
Immanuel KantThe universal and lasting establishment of peace constitutes not merely a part, but the whole final purpose and end of the science of right as viewed within the limits of reason.
Immanuel KantBut although all our knowledge begins with experience, it does not follow that it arises from experience.
Immanuel Kant