Invasion of the Body Snatchers.
"We can't close our eyes
all night.
We may wake up changed
into something evil and inhuman.
In my practice,
I've seen how people
have allowed their humanity
to drain away.
Only, it happens slowly
instead of all at once.
They didn't seem to mind.
But just some people.
All of us... a little bit.
We harden our hearts
and grow callous.
Only when we have to fight
to stay human
do we realize how precious
it is to us."