ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone
breast: P. and V. στῆθος, το, or pl. (Plato but rare P.), στέρνον, τό, or pl. (Xenophon but rare P.).
box: P. and V. θήκη, ἡ, ζύγαστρον, τό (Xen.), Ar. and P. κιβωτός, ἡ (Lys.), Ar. and V. ἄγγος, τό, V. λέβης, ὁ.