Who said "A leader's silence is his most powerful tool."?

This quote is attributed to Black Bolt.

A leader's silence is his most powerful tool. - Black Bolt

"A leader's silence is his most powerful tool."

Black Bolt Leadership

"My silence speaks louder than words ever could."

"Power without control is chaos."

"I lead through action, not words."

"Family is everything to me."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"