Who said "One good: knowledge. One evil: ignorance."?

Socrates (c. 470–399 BC). Source: Diogenes Laertius 2.31.

What is the original Greek?

ἓν μόνον ἀγαθὸν εἶναι, τὴν ἐπιστήμην, καὶ ἓν μόνον κακόν, τὴν ἀμαθίαν. Translated from the original Greek by Spartan Surfers.

Socrates, Diogenes Laertius 2.31

"One good: knowledge. One evil: ignorance." Socrates said it in Diogenes Laertius 2.31. Translated from the original Greek by Spartan Surfers.

"ἓν μόνον ἀγαθὸν εἶναι, τὴν ἐπιστήμην, καὶ ἓν μόνον κακόν, τὴν ἀμαθίαν"

Original Greek, Diogenes Laertius 2.31. Greek: Hicks 1925 Loeb text via Perseus.

Socrates (c. 470–399 BC). The Athenian who wrote nothing and questioned everyone. We know him through Plato.

Who said "One good: knowledge. One evil: ignorance."?: Socrates (c. 470–399 BC). Source: Diogenes Laertius 2.31.
What is the original Greek?: ἓν μόνον ἀγαθὸν εἶναι, τὴν ἐπιστήμην, καὶ ἓν μόνον κακόν, τὴν ἀμαθίαν. Translated from the original Greek by Spartan Surfers.