ἡ κέρκος τῇ ἀλώπεκι μαρτυρεῖ → you can tell a fox by its tail, small traits give the clue to the character of a person
Κᾱφῑσιος 1 of Kephisos Καφισίων ὑδάτων λαχοῖσαι αἵτε ναίετε καλλίπωλον ἕδραν (O. 14.1)