The Tindall family motto is “Nosce te ipsum” which is the Latin translation of the ancient Greek aphorism γνώθι σεαυτόν, meaning “Know thyself”. It was inscribed above the entrance to the Temple of Apollo at Delphi.
Plato employs the maxim 'Know Thyself' extensively by having the character of Socrates use it to motivate his dialogues.Plato makes it clear that Socrates is referring to a long-established wisdom. Benjamin Jowett's index to his translation of the Dialogues of Plato lists six dialogues which discuss or explore the saying of Delphi: 'know thyself.' These dialogues (and the Stephanus numbers indexing the pages where these discussions begin) are Charmides (164D), Protagoras (343B), Phaedrus (229E), Philebus (48C), Laws (II.923A), I Alcibiades (124A, 129A, 132C).