Our characters ought to be like the luminous paint mentioned below and
continue to shine in the night of misfortune and disaster just the same.
You have probably seen luminous paints applied to the surfaces
of the match-boxes that are permanently fixt on the walls of a
room. During their exposure to the light in the daytime, these
paints are so affected that they will continue to shine during
the greater part of the night, altho there is no other light in
the room. One coming into the room can, therefore, readily see
where the match-box is.--EDWIN J. HOUSTON, Ph.D., “The
Wonder Book of Light.”
(1938)