Greek proverb: Ἐκ τῶν ὀνύχων

Here's a saying from Apostolius, 6.93, with a Latin version from Clavis Homerica. The image is from NeonMan at Flickr. Here are some more Apostolius proverbs.

Ἐκ τῶν ὀνύχων τὸν λέοντα.
Ex unguibus leonem.
You know the lion by its claws.