TV
There can be no special cases, because every man at the front is a special case to someone.
— Isobel • Downton Abbey

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Isobel argues that exceptions can't be granted, because every soldier at the front matters intensely to somebody. Picking one as special would ignore everyone else's loved one, so fairness means treating each case the same because each one is precious.
Context reviewed