Therasia
From LSJ
ἔνδον σκάπτε, ἔνδον ἡ πηγὴ τοῦ ἀγαθοῦ καὶ ἀεὶ ἀναβλύειν δυναμένη, ἐὰν ἀεὶ σκάπτῃς → Dig within. Within is the wellspring of Good; and it is always ready to bubble up, if you just dig | Look within. Within is the fountain of the good, and it will ever bubble up, if thou wilt ever dig.
Latin > English (Lewis & Short)
Thērăsĭa: ae, f., = Θηρασία,>
I a small island in the Ægean Sea, opposite to Thea, westward, still called Therasia, Plin. 2, 87, 89, § 202; 4, 12, 23, § 70; Sen. Q. N. 6, 21, 1. —
II One of the Lipari islands near Sicily, now Vulcanello, Plin. 3, 9, 14, § 93; Mart. Cap. 6, § 648.