The Insight
The Arabic nasiyah (نَاصِيَة) is the forehead. How can a forehead lie? In 1848, railway worker Phineas Gage survived an iron rod piercing his frontal lobe. His personality transformed completely: impulsive, dishonest, morally erratic, while all other faculties remained intact. This revealed the prefrontal cortex as the seat of moral reasoning and impulse control. Neuroscience now confirms: moral decisions and the act of lying originate in the prefrontal cortex, precisely the anatomical region the Quran named as the locus of lying, over a millennium before neuroscience discovered why.