Self-knowledge or knowledge of oneself; in philosophy and psychology, insight into one's own nature and mind.
From Greek 'auto-' (self) and 'gnosis' (knowledge). Used in philosophical and psychological contexts since ancient times, formalized in modern psychology.
Ancient philosophers saw autognosis as the ultimate goal—'know thyself' was inscribed at the Temple of Apollo—because truly understanding your own mind lets you understand everything else.
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