INSANITY - Means Violations of Social Norms

1.      The condition of being insane;  a derangement of the mind.

2.      Law . such unsoundness of mind as frees one from legal responsibility, as for committing a crime, or as signals one's lack of legal capacity, as ….

3.      Psychiatry . (formerly) psychosis.

4. a.  Extreme foolishness; folly; senselessness; foolhardiness: Trying….

    b.  A foolish or senseless action, policy, statement, etc.: We've heard decades of insanities in our political discourse.

Insanity: From Wikipedia, the free encyclopedia

Insanity, craziness or madness is a spectrum of behaviors characterized by certain abnormal mental or behavioral patterns. Insanity may manifest as violations of societal norms, including a person becoming a danger to themselves or others, though not all such acts are considered insanity. ….
In English, the word "sane" derives from the Latin adjective sanus meaning "healthy". The phrase "mens sana in corpore sano" is often translated to mean a "healthy mind in a healthy body". From this perspective, insanity can be considered as poor health of the mind, not necessarily of the brain as an organ (although that can affect mental health), but rather refers to defective function of mental processes such as reasoning. Another Latin phrase related to our current concept of sanity is "compos mentis" (lit. "of composed mind"), and a euphemistic term for insanity is "non compos mentis". In law, mens rea means having had criminal intent, or a guilty mind, when the act (actus reus) was committed.

Albert Einstein - Insanity: doing the same thing over and over again and expecting different results.