"A delusion starts like any other idea, as an egg. Identical on the outside, perfectly formed. From the shell, you'd never know anything was wrong. It's what's inside that matters... ...We have ideas all the time, random thoughts and theories. Most die before they can grow. For a delusion to thrive, other, more rational ideas must be rejected, destroyed. Only then can the delusion blossom into full-blown psychosis." (Legion)