Act only according to that maxim whereby you can at the same time will that it should become a universal law. - Immanuel Kant

Von einem tungusischen Schaman, bis zu dem Kirche und Staat zugleich regierenden europäischen Prälaten … ist zwar ein mächtiger Abstand in der Manier, aber nicht im Prinzip, zu glauben; denn was dieses betrifft, so gehören sie insgesammt zu einer und derselben Klasse, derer nämlich, die in dem, was an sich keinen bessern Menschen ausmacht (im Glauben gewisser statutarischer Sätze, oder Begehen gewisser willkürlicher Observanzen), ihren Gottesdienst setzen. Diejenigen allein, die ihn lediglich in der Gesinnung eines guten Lebenswandels zu finden gemeint sind, unterscheiden sich von jenen durch den Ueberschritt zu einem ganz andern und über das erste weit erhabenen Prinzip.

A man abandoned by himself on a desert island would adorn neither his hut nor his person; nor would he seek for flowers, still less would he plant them, in order to adorn himself therewith. It is only in society that it occurs to him to be not merely a man, but a refined man after his kind (the beginning of civilization). For such do we judge him to be who is both inclined and apt to communicate his pleasure to others, and who is not contented with an object if he cannot feel satisfaction in it in common with others. Again, every one expects and requires from every one else this reference to universal communication of pleasure, as it were from an original compact dictated by humanity itself.

What is more, we cannot do morality a worse service than by seeing to derive it from examples. Every example of it presented to me must first itself be judged by moral principles in order to decide if it is fit to serve as an original example...even the Holy One of the gospel must first be compared with our ideal of moral perfection before we can recognize him to be such.