Who said "Hold your ground. Win or die there."?

Callicratidas (8th–4th century BC). Source: Plutarch, Sayings of Spartans, Callicratidas 5 (222e).

What is the original Greek?

μένοντα δὲ ἢ ἀποθανεῖν ἢ νικᾶν ἄριστον. Translated from the original Greek by Spartan Surfers.

Hold your ground. Win or die there.

Callicratidas, Plutarch, Sayings of Spartans, Callicratidas 5 (222e)

The source

"Hold your ground. Win or die there." Callicratidas said it in Plutarch, Sayings of Spartans, Callicratidas 5 (222e). Translated from the original Greek by Spartan Surfers.

"μένοντα δὲ ἢ ἀποθανεῖν ἢ νικᾶν ἄριστον."

Original Greek, Plutarch, Sayings of Spartans, Callicratidas 5 (222e). Greek: Bernardakis 1889 (Teubner) via Perseus.

Who said it

The Spartans (8th–4th century BC). Laconic sayings from Lycurgus, Leonidas, Dienekes and the mothers of Sparta, recorded by Herodotus and Plutarch.

Questions

Who said "Hold your ground. Win or die there."?: Callicratidas (8th–4th century BC). Source: Plutarch, Sayings of Spartans, Callicratidas 5 (222e).
What is the original Greek?: μένοντα δὲ ἢ ἀποθανεῖν ἢ νικᾶν ἄριστον. Translated from the original Greek by Spartan Surfers.