Who said "A person is only worth as much as the words he uses."?

This quote is attributed to King Azaz.

A person is only worth as much as the words he uses. - King Azaz

"A person is only worth as much as the words he uses."

King Azaz

Character in The Phantom Tollbooth

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"Words can be commended, debased, or ignored, but they cannot be reversed."

"You can never be too careful when choosing the words you use."

"Words are such wonderful things."

"Let me see your mind."