These sayings are drawn from the Gnomologium Vaticanum. For other testimonia see below.
“Theano used to say “It is shameful to be silent on matters about which it is noble to speak and noble to be silent on those shameful to mention”
Θεανὼ ἔφη· ” περὶ ὧν λέγειν καλὸν περὶ τούτων σιωπᾶν αἰσχρὸν καὶ περὶ ὧν αἰσχρὸν λέγειν περὶ τούτων σιωπᾶν καλόν.”
“Theano the Pythagorean philosopher was asked how a man and woman might live together and said ‘if they learn to bear each other’s moods’.”
Θεανὼ ἡ πυθαγορικὴ φιλόσοφος ἐρωτηθεῖσα πῶς ἂν δύναιτο γυνὴ καὶ ἀνὴρ συμπεριφέρεσθαι ἀλλήλοις εἶπεν· ” ἐὰν μάθωσι τὰς ἀλλήλων ὀργὰς φέρειν.”
“Theano suggested that a woman coming to her husband should strip off her shame along with her clothes and put them all back on again when she left.”
Θεανὼ παρεκελεύσατο ἅμα τοῖς ἱματίοις καὶ τὴν αἰσχύνην ἀποτίθεσθαι τὴν πρὸς τὸν ἄνδρα βαδίζουσα<ν>, περιβαλλομένην δὲ πάλιν κομίζεσθαι.
“Theano, when asked what number of days a woman was clean from her husband and is was right for her to go to the temple, said ” ‘on the same day from her own husband, but never from another.’ ”
Θεανὼ ἐρωτηθεῖσα ποσταία ἡ γυνὴ ἀπὸ ἀνδρὸς καθαρεύει καὶ εἰς ἱερὸν ἰέναι δεῖ αὐτὴν ἔφη· ” ἀπὸ μὲν τοῦ ἰδίου αὐθημερόν, ἀπὸ δὲ τοῦ ἀλλοτρίου οὐδέποτε.”
“Theano said ‘It is better to trust onself to an unbridled horse than an illogical woman.’ ”
Θεανὼ εἶπε· “κρεῖττόν ἐστιν ἵππῳ ἀχαλινώτῳ ἑαυτὸν πιστεύειν ἢ γυναικὶ ἀλογίστῳ.”
“While Theano was walking she showed her forearm and some youth when he saw it said “Nice skin”. She responded, “it’s not communal”.
Θεανὼ πορευομένη ἔξω εἶχε τὸν βραχίονα· νεανίσκος δέ τις ἰδὼν εἶπε· ” καλὸν τὸ δέμας·” ἡ δὲ ἀπεκρίνατο· ” ἀλλ’ οὐ κοινόν.”
“When Theano the Pythagorean philosopher was asked what eros is, she said ‘the passion of a soul with spare time.’ ”
Θεανὼ ἡ πυθαγορικὴ φιλόσοφος ἐρωτηθεῖσα τί ἐστιν ἔρως ἔφη· ” πάθος ψυχῆς σχολαζούσης.”
Suda s.v. Theano (theta 83)
“Theano: from Metapontum or Thurii. A Pythagorean, daughter of Leôphrôn, wife of Karustos of Krotôn, or Brôtinos the Pythagorean. She wrote On Pythagoras, On Virtue to Hippodamos of Thurii, Advice for Woman, and Sayings of the Pythagoreans.”
Θεανώ, Μεταποντίνη ἢ Θουρία, Πυθαγορεία, θυγάτηρ Λεώφρονος, γαμετὴ δὲ Καρύστου ἢ Κρότωνος ἢ Βρωτίνου τοῦ Πυθαγορείου. αὕτη ἔγραψε περὶ Πυθαγόρου, Περὶ ἀρετῆς ῾Ιπποδάμῳ Θουρίῳ, Παραινέσεις γυναικείας καὶ ᾿Αποφθέγματα Πυθαγορείων.
Diogenes Laertius, 8.42
“Pythagoras also had a wife, named Theanô, the daughter of Brontinus of Kroton. Others say she was Brontinus’ wife and Pyhtagoras’ student.”
[42] Ἦν δὲ τῷ Πυθαγόρᾳ καὶ γυνή, Θεανὼ ὄνομα, Βροντίνου τοῦ Κροτωνιάτου θυγάτηρ: οἱ δέ, γυναῖκα μὲν εἶναι Βροντίνου, μαθήτριαν δὲ Πυθαγόρου…
