Phagocytes, that's what they are--white corpuscles--and it's all they're there for.

They believe in preparedness hard enough.

See 'em march up to fight when there's an invasion! And how they do fight! These pacifists belie their own construction.

They're built on a fight from the cradle and before that.
"I wish more of their own phagocytes would begin to preach non-resistance and try to teach great moral lessons to invading germs.
We wouldn't have to listen to so many of 'em.

But phagocytes don't act that way.