In any case, they are a peaceful race that never harmed anybody.

Contrary to the personality of their "last son", Czarnians were a peaceful race.

They are a peaceful race, that communicate largely by telepathy.

Why would a hitherto peaceful race suddenly turn violent?

The Zonerians are a peaceful race, who settled on Earth a long time ago.

They are a peaceful race, and during their whole former history have had little need to acquire the martial arts.

Still, this seemed to be a remarkably peaceful race.

But the truth is that we are a peaceful race and loathe violence.

"We've always assumed that the Antosians are one of the most peaceful races in the galaxy."

We will have to change from a peaceful race to one with a psychology adapted only to war.