If you want to increase your insanity, avoid the asylum.

It was the essence of life to disbelieve in death for one's self, to act as if life would continue forever. And life had to act also as if little issues were big ones. To take a realistic attitude toward life and death meant that one lapsed into unreality. Into insanity. It was ironic that the only way to keep one's sanity was to ignore that one was in an insane world or to act as if the world were sane.

Kyubey: ...Oh, geez. I never would have thought you capable of throwing your friend off a bridge. That wasn't a sane act, Madoka!

Losing your mind is just like ruining a flower just have to keep plucking at their petals

We are not ourselves When nature, being oppressed, commands the mind To suffer with the body.

There is a pleasure, sure, In being mad, which none but madmen know!