Kennedy and Caesar

Caesar's lofty message:
I came, I saw, I conquered.
Pharnaces, king of Pontus,
To Caesar lost the Race.

The sovereign of the Space Age
In dire silence uttered:
Veni, Vidi, Vici.
Before Kennedy's light,
Ignorance, the prince of Doom,
The frown of eyeless Night,
Covered in shame his face.