Sense of Wonder

Now often (lovingly) written sensawonder. Moskowitz may not have been completely correct, but has been vindicated insofar as most people see Sense of Wonder as a very important component of all fantastic literature.

from Fancyclopedia 2 ca. 1959
(Moskowitz) That which characterizes stfnists (def. 2) in general; and, the quality in science-fiction that arouses their admiration. Much jeering at SaM's expense has accompanied his proclamations of need for/discovery of this commodity, and many doubt that the phrase really describes anything more definite than the glow of enjoyment.