Let's face it, tech books can be a bit dull, even if they are about Perl. It helps when the author sprinkles little gems like this in there:
"And it's much easier not to have to ponder the gestalt psychodynamic ramifications of the class on the collective developer consciousness in order to work out that you needed to write that extra line in the first place."
Perl Best Practices, page 344. Thanks, Damian!