Causes have ever worked in such a way,
And where, even from the world's first origin,
Thuswise have things befallen, so even now
After a fixed order they come round
In sequence also.
Likewise, days may wax
Whilst the nights wane, and daylight minished be
Whilst nights do take their augmentations,
Either because the self-same sun, coursing
Under the lands and over in two arcs,
A longer and a briefer, doth dispart
The coasts of ether and divides in twain
His orbit all unequally, and adds,
As round he's borne, unto the one half there
As much as from the other half he's ta'en,
Until he then arrives that sign of heaven
Where the year's node renders the shades of night
Equal unto the periods of light.
For when the sun is midway on his course
Between the blasts of northwind and of south,
Heaven keeps his two goals parted equally,
By virtue of the fixed position old
Of the whole starry Zodiac, through which
That sun, in winding onward, takes a year,
Illumining the sky and all the lands