Sanity
Soundness, rationality and healthiness of the mind / From Wikipedia, the free encyclopedia
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For other uses, see Sanity (disambiguation).
"Sound mind" redirects here. For the phrase "sound mind in a sound body", see Mens sana in corpore sano.
Sanity (from Latin: sānitās) refers to the soundness, rationality, and health of the human mind, as opposed to insanity. A person is sane if they are rational. In modern society, the term has become exclusively synonymous with compos mentis (Latin: compos, having mastery of, and Latin: mentis, mind), in contrast with non compos mentis, or insanity, meaning troubled conscience. A sane mind is nowadays considered healthy both from its analytical - once called rational - and emotional aspects.[1] According to the writer G. K. Chesterton,[2] sanity involves wholeness, whereas insanity implies narrowness and brokenness.