Dasein makes possible, first and foremost, its authentic potentiality-for-Being. But because Dasein is lost in the ‘they’, it must first find itself… attested by that which… is familiar to us as the ‘voice of conscience’.
Heidegger identifies authentic potentiality-for-Being as recovered through the call of conscience, which wrests Dasein from its lostness in the anonymous ‘they.’
, Being and Time, 1962thesis