Who said "Fight for the law like you'd fight for the wall."?

Heraclitus (c. 535–475 BC). Source: Fragment B44 (Diels-Kranz).

What is the original Greek?

μάχεσθαι χρὴ τὸν δῆμον ὑπὲρ τοῦ νόμου ὅκωσπερ τείχεος. Translated from the original Greek by Spartan Surfers.

Fight for the law like you'd fight for the wall.

Heraclitus, Fragment B44 (Diels-Kranz)

The source

"Fight for the law like you'd fight for the wall." Heraclitus said it in Fragment B44 (Diels-Kranz). Translated from the original Greek by Spartan Surfers.

"μάχεσθαι χρὴ τὸν δῆμον ὑπὲρ τοῦ νόμου ὅκωσπερ τείχεος."

Original Greek, Fragment B44 (Diels-Kranz). Greek: Diels-Kranz fragment text via el.wikisource.

Who said it

Heraclitus (c. 535–475 BC). Philosopher of Ephesus who taught that everything flows. Only fragments of his book survive.

Questions

Who said "Fight for the law like you'd fight for the wall."?: Heraclitus (c. 535–475 BC). Source: Fragment B44 (Diels-Kranz).
What is the original Greek?: μάχεσθαι χρὴ τὸν δῆμον ὑπὲρ τοῦ νόμου ὅκωσπερ τείχεος. Translated from the original Greek by Spartan Surfers.