Who said "Goodness is something chosen, an act of the will."?

This quote is attributed to Plato.

Goodness is something chosen, an act of the will. - Plato

"Goodness is something chosen, an act of the will."

Plato Kindness

Philosopher Ancient Greek 428–348

"The only true wisdom is in knowing you know nothing."

"The measure of a person is what they do with power."

"We are not makers of history. We are made by history."

"Knowledge which is acquired under compulsion obtains no hold on the mind."

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."