The ends of the earth,—and again where he says (I. vii. 478):—
Nor should I care
Though thou wert thrust beneath the lowest deep
Of earth and ocean,—and in
On the very top of many-peaked Olympus where there is a top,
there, too, is a limit.

His opinions about the sun are plain. That it has an orbicular energy sometimes appearing over the earth, sometimes going under it, this he makes evident by saying (O. x. 190):—

My friends, lo we know not where is the place of darkness or
of dawning, nor where the sun that gives light to men goes
beneath the earth, nor where he rises.

And that he is always preceding over us and on this account is called Hyperion by our poet; that he makes the sun rising from the water which surrounds the earth the ocean, that the sun descends into it, is clearly expressed. First, as to the rising (O. iii. l):—

Now the sun arose and left the lovely mere speeding to the
brazen heaven, to give light to the immortals and to mortal
men on the earth.

Its setting (I. vii. 486):—

The sun, now sunk beneath the ocean wave,
Drew o'er the teeming earth the veil of night.

And he declares its form (O. xix. 234):—

He was brilliant as the sun,

and its size (I. xi. 735):—