We’re so careful to see that no one gets hurt. No one, that is, but ourselves.

We're not going to have any casualties.

When there is no enemy within, the enemies outside cannot hurt you.

Nobody is hurt. Hurt is in the mind. If you can walk, you can run.

How safe are we here?

Dangers don't hurt us. Only things that happen ever hurt anyone, and a danger is a thing that might happen and might not happen, and sometimes don't amount to shucks.

All the devils in hell and tempters on earth could do us no injury if there were no corruption in our own natures.

We do not suffer by accident.

Soldiers out here have kept us safe for so long, that there is essentially no real danger in this society.

Earth will be safe when we feel in us enough safety.

What they don’t know won’t hurt us...

We're not the one who need to be careful.

The thing is - fear can't hurt you any more than a dream.

But nobody can stay alive without getting into danger sometimes, and danger doesn't mean getting hurt, Cap'n; it only means we might get hurt. So I guess we'll have to take the risk.