Have been looking through The Letters of Robert Burns over at Project Gutenberg, EBook #9863.
Gives me the chills sometimes to read through letters of people in past centuries, and these get pretty sad toward the end.

Also makes me consider that people might one day, in the distant future, be reading through our letters and even posts here on XMTS.
Here's the link:
http://www.gutenberg.org/dirs/etext06/8burn10h.htm