8.  They ought to have felt astonishment and admiration not only at the arrangement of sun and moon, but also at the well-ordered choirs of the stars, their unimpeded courses, and their risings in the seasons due to each:  and how some are signs of summer, and others of winter; and how some mark the season for sowing, and others shew the commencement of navigation Clem. Alex. (Stromat. VI. 11):  “The same is true also of Astronomy, for being engaged in the investigation of the heavenly bodies, as to the form of the universe, and the revolution of the heaven, and the motion of the stars, it brings the soul nearer to the Creative Power, and teaches it to be quick in perceiving the seasons of the year, the changes of the atmosphere, and the risings of the stars; since navigation also and husbandry are full of benefit from this science.”  Compare Lactantius (De Irâ Dei, cap. xiii.)..  And a man sitting in his ship, and sailing amid the boundless waves, steers his ship by looking at the stars.  For of these matters the Scripture says well, And let them be for signs, and for seasons, and for years Gen. i. 14., not for fables of astrology and nativities.  But observe how He has also graciously given us the light of day by gradual increase:  for we do not see the sun at once arise; but just a little light runs on before, in order that the pupil of the eye may be enabled by previous trial to look upon his stronger beam:  see also how He has relieved the darkness of the night by rays of moonlight.