Fundamental Principles of the Metaphysic of Morals (Sec. I), by Immanuel Kant

<p>Immanuel Kant, the most influential of German philosophers, taught that it was man's duty to be happy, for an unhappy man is tempted to sin. Seekers after happiness find aid and inspiration in Kant's writings. (Volume 32, Harvard Classics)</p> <p>Immanuel Kant born April 22, 1724.</p> <p> </p>