Who said "To speak truth is the first duty of a just man."?

This quote is attributed to Claudius.

To speak truth is the first duty of a just man. - Claudius

"To speak truth is the first duty of a just man."

Claudius Truth

Emperor Ancient Rome 10–54

"I am not ashamed of my intellect, but I shall never boast of it."

"Let all be done decently and in order."

"I wish the Gods to be in all things."

"Moderation in all things is the key to virtue."

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."