People
All that is gold does not glitter,
— J.R.R. Tolkien

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Not everything valuable announces itself with shine. The line warns that worth can lie beneath a plain or unremarkable surface, so appearances are an unreliable guide. Something may be truly precious without any outward sparkle, and glittering show is no proof of real value.
Context reviewed