The precept, "Know yourself," was not solely intended to obviate the pride of mankind; but likewise that we might understand our own worth.
Marcus Tullius Cicero, Pierre-Joseph Thoulier Olivet, Alexander WISHART (1773). “Thoughts of Cicero, on the following subjects, viz. I. Religion, II. Man ... XII. Miscellaneous thoughts. Published in Latin and French by the AbbĂ© d'Olivet; to which is now added, an English translation, with notes. By Alexander Wishart”, p.41