We all throw around the words “hero” and “heroism” too readily, and it cheapens the real thing, which is rare, and awe-inspiring. Teachers are heroes, cancer patients are heroes, mothers and dads are heroes, legislators who ignore polls are heroes, quarterbacks are heroes. There is much heroism around us, certainly—those who do vital jobs and make courageous choices at personal sacrifice deserve praise and recognition, as do those who overcome tremendous personal challenges. We should appreciate these acts when we see them.

Still, this leaves us unable to muster the words to distinguish the rarest and most remarkable of heroes, like the fifty Japanese nuclear technicians who have remained behind to try to prevent a nuclear catastrophe at the Fukushima Dai-ichi nuclear plant damaged by Friday’s earthquake. They are not merely risking their lives, but quite probably trading them, for the well-being of their country and its citizens.

We should all aspire to such courage, selflessness, and character.

In the pantheon of ethical conduct, the Fukushima Fifty deserve the most honored place of all.