“We must invent our enemy. If he doesn't exist, we must create him.'

'But that's crazy,' said Radius. 'It'd be like choosing to have hallucinations--seeing something that doesn't exist and saying that it does.'

'Comrade Radius,' said Flight, 'listen. There's no such thing as a perfect enemy. A real enemy is always imperfect: never perfectly evil and never perfectly invincible. He has mild, even gentle characteristics. He's vulnerable. The perfect enemy is the one you create yourself.'

'But why can't we have an imperfect enemy?' Radius persisted. 'If evil is imperfect, if it's so weak and helpless, why should we force things and give it a perfection it doesn't possess?'

'Because *we* have to be perfect,' said Flight.”