Who said "The value of a promise is measured by its keeping."?

This quote is attributed to Themistocles.

The value of a promise is measured by its keeping. - Themistocles

"The value of a promise is measured by its keeping."

Themistocles Truth

Statesman General Ancient Greece 524–460

"A man is not finished when he is defeated. He is finished when he quits."

"The victor will not be asked afterwards whether he told the truth."

"Persuasion is a far more powerful weapon than force."

"Do not despise the enemy that is down, for fortune is fickle."

"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."