In law, one of the definitions of insanity that relieve a person being tried in court for a crime is that they cannot tell right from wrong.
Idleness is the mother of all vices
(The devil makes work for idle hands)
Necessity is the mother of invention
Desire is the engine of necessity
Enlightenment is freedom from desire
Freedom from desire leads to idleness
Idleness is the mother of all vices
Correction
Enlightenment is the freedom from wrong desires
Wrong desires Right desires
One who cannot tell right from wrong is insane
We are {all} caught on the turning wheel of wrong desire
Ergo – we are all insane.