Who said "The mark of a true leader is their ability to adapt."?

This quote is attributed to William Riker.

The mark of a true leader is their ability to adapt. - William Riker

"The mark of a true leader is their ability to adapt."

William Riker Leadership

"Make it so."

"I'm a man of action. Words come later."

"You can't spend your whole life waiting for things to happen."

"The line between improvisation and disaster is a very fine one."

"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"