Push the thought away and be flat calm.

The source

"Push the thought away and be flat calm." Marcus Aurelius said it in Meditations 5.2. Translated from the original Greek by Spartan Surfers.

"Ὡς εὔκολον ἀπώσασθαι καὶ ἀπαλεῖψαι πᾶσαν φαντασίαν ὀχληρὰν ἢ ἀνοίκειον καὶ εὐθὺς ἐν πάσῃ γαλήνῃ εἶναι."

Original Greek, Meditations 5.2. Greek: Leopold 1908 (Teubner) via Perseus.

Who said it

Marcus Aurelius (121–180 AD). Roman emperor who wrote private notes to himself on a military campaign. We know them as the Meditations.

Questions

Who said "Push the thought away and be flat calm."?

Marcus Aurelius (121–180 AD). Source: Meditations 5.2.

What is the original Greek?

Ὡς εὔκολον ἀπώσασθαι καὶ ἀπαλεῖψαι πᾶσαν φαντασίαν ὀχληρὰν ἢ ἀνοίκειον καὶ εὐθὺς ἐν πάσῃ γαλήνῃ εἶναι. Translated from the original Greek by Spartan Surfers.