A magical universe was so terrifying because it was so irrational. There was no cause and effect anywhere. - Edith Hamilton

With the coming forward of Greece, mankind became the center of the universe, the most important thing in it. This was a revolution in thought. Human beings had counted for little heretofore. In Greece man first realized what mankind was.

Underneath the shifting sands of the struggle between two little Greek states [Thucydides] had caught sight of a universal truth. Throughout his book, through the endless petty engagements on sea and land which he relates with such scrupulous care, he is pointing out what war is, why it comes to pass, what it does, and, unless men learn better ways, must continue to do. His History of the Peloponnesian War is really a treatise on war, its causes and its effects.

[W]hat is ugly and evil is apt to change and grow milder with time.