III.
GREEK ASTRONOMY.

First Period. b.c. 900 to b.c. 350.

“Great men! elevated above the common standard of human nature by discovering the laws which celestial occurrences obey, and by freeing the wretched mind of man from the fears which eclipses inspired! Hail to you and to your genius, interpreters of heaven, worthy recipients of the laws of the universe, authors of the principles which connect gods and men!”

Pliny 
(Apostrophe to Thales and Hipparchus.)