Who said "I've found that gratitude opens doors that anger closes."?

This quote is attributed to William Riker.

I've found that gratitude opens doors that anger closes. - William Riker

"I've found that gratitude opens doors that anger closes."

William Riker Gratitude

"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."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"