Out of context, I thought Dante's "Inferno" delivered a pretty good one:
"But the stars that marked our starting fall away.
We must go deeper into greater pain,
For it is not permitted that we stay."
Also, there's the last verse of Poe's "To Lake --" which centres on a man committing suicide by drowning. It goes:
"Death was in that poisonous wave
And in its gulf a fitting grave
To him who thence could solace bring
To his lone imagining
For even his solitary soul could make
An Eden of that dim lake."
There's also a whole bunch of Emily Dickinson quotes. Like from her poem "There is a Solitude of Space":
"There is a solitude of space
A solitude of sea
A solitude of death, but those
Society shall be
Compared with the profounder site
That polar privacy
Asow I admitted to itself -
Hope these weren't the complete opposite of what your post intended.