Drunkenness is simply voluntary insanity

Drunkenness is nothing but voluntary madness

What is more insane than to vent on senseless things the anger that is felt towards men? [Lat., Quid est dementius quam bilem in homines collectam in res effundere.]

There has never been any great genius without a spice of madness. [Lat., Nullum magnum ingenium sine mixtura dementiae fuit.]

I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they've always worked for me.

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