Transcendentalist Ralph Waldo Emerson, Chinese philosopher Lao Tzu, supermarket magnate Frank Outlaw, spiritual teacher Gautama Buddha, and the father of Margaret Thatcher? Each one of these individuals has been credited with versions of the following quote:
Watch your thoughts. They become words. Watch your words. They become deeds. Watch your deeds. They become habits. Watch your habits. They become character. Character is everything.