Confucius advised that to govern others, one must first govern oneself. The Hindu Upanishads said that “enquiry into the truth of the Self is knowledge.” In the Jewish faith, self-knowledge has been called “the prerequisite for any self-improvement.” Avicenna, a tenth-century Muslim philosopher, wrote that “self-awareness is essential to the soul and [our] awareness of ourselves is our very existence.
extracts from Insight by Tasha Eurich