Antipater of Tyre in Wikipedia
Antipater (Greek: Ἀντίπατρος; 1st century BC) of Tyre was a Stoic philosopher, and a contemporary of Cato the Younger and Cicero. Antipater is said to have befriended Cato when the latter was a young man. He appears to be the same as the Antipater of Tyre mentioned by Strabo.
He lived after, or was at least younger than, Panaetius. Cicero, in speaking of him, says, that he died "recently at Athens", which must mean shortly before 45 BC. From this passage we can infer that Antipater wrote a work On Duties (Latin: de Officiis), and Diogenes Laertius  refers to a work by him On the Cosmos (Greek: περὶ κόσμου):
The whole world is a living being, endowed with soul and reason, and having aether for its ruling principle: so says Antipater of Tyre in the eighth book of his treatise On the Cosmos.
-Diogenes Laertius, vii. 139