Nobody hands your body to strangers. Why hand them your mind?

The source

"Nobody hands your body to strangers. Why hand them your mind?" Epictetus said it in Enchiridion 28. Translated from the original Greek by Spartan Surfers.

"εἰ μὲν τὸ σῶμά σού τις ἐπέτρεπε τῷ ἀπαντήσαντι, ἠγανάκτεις ἄν· ὅτι δὲ σὺ τὴν γνώμην τὴν σεαυτοῦ ἐπιτρέπεις τῷ τυχόντι"

Original Greek, Enchiridion 28. Greek: Schenkl 1916 (Teubner) via Perseus.

Who said it

Epictetus (c. 50–135 AD). Born enslaved, became the most influential Stoic teacher of his age. His student Arrian wrote down the Discourses and the Enchiridion.

Questions

Who said "Nobody hands your body to strangers. Why hand them your mind?"?

Epictetus (c. 50–135 AD). Source: Enchiridion 28.

What is the original Greek?

εἰ μὲν τὸ σῶμά σού τις ἐπέτρεπε τῷ ἀπαντήσαντι, ἠγανάκτεις ἄν· ὅτι δὲ σὺ τὴν γνώμην τὴν σεαυτοῦ ἐπιτρέπεις τῷ τυχόντι. Translated from the original Greek by Spartan Surfers.