People
Nothing can bring you peace but yourself. Nothing can bring you peace but the triumph of principles.
— Ralph Waldo Emerson · Essays, First Series, "Self-Reliance"

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The line insists calm cannot be borrowed from circumstance or other people. It has to come from within, rooted in staying loyal to one's own principles. External comfort is treated as unreliable, while inner steadiness bound to conviction is framed as the only lasting source of peace.
Context reviewed