Re-reading this thread, I find it interesting that none of the variants given here contain what to me is the last verse, sort of a summing-up stanza:

Young man, ne'er cast your eye on beauty,
For beauty is a thing that will decay-
I've seen many a fair and bright sunny morning
Turn into a dark and deludinous day.

Some folks around home didn't like this ending and changed the verse's poetry to, "I've seen many dark and stormy morning turn into a bright sunshiny day." Which does not illustrate the meaning in the FIRST two lines, but I guess no one was thinking of that! Being a literate family, we stayed with the "dark and deludinous" line.