The contemplation of the world began from the noblest spectacle that the human senses present to us
[ the infinite expanse and limitless motions of the stars]
and that our underststanding can bear to follow in their vast reach;
and it ended-
in astrology.
Morality began with the noblest attribute of human nature
[free will],
the development and cultivation of which give a prospect of infinite utility;
and ended-
in fanaticism or superstition.

Immanuel Kant,Critique of Practical Reason, trans.Thomas Abbot.