It's something I try to live by.
Yes, I did ad-lib from that nursery rhyme... Probably one of the wisest ever written.
...Kind of Buddist, really. It's got that "all existence is an illusion" type ambiance.
A previous author also wrote: "I always try to believe at least six impossible things before breakfast." - Something might help me to understand some of the 'gnome-like beings' on planet Dnf.
As for a second verse... Not quite, but check the original (?) and much longer version here, halfway down the page - found on a random site:
http://members.aol.com/MajorMicro/FEATURE.HTM
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In a Wonderland they lie,
Dreaming as the days go by,
Dreaming as the summers die:
Ever drifting down the stream --
Lingering in the golden gleam --
Life, what is it but a dream?