Watch your words, for they become actions.
Watch your actions, for they become habits.
Watch your habits, for they become character.
Watch your character, for it becomes your destiny.
The source is unknown
"All things whatsoever you would that men should do to you,
do even so to them: for this is the law and the prophets.
Peggie Jentoft writes: Karma means cause and effect. We talk about good and bad Karma but Karma is basically neutral. The "law of karma" is sort of like the energy and spiritual equivalent of Newton's third law. Every action has an equal an opposite reaction. The lessons or effects are not Divinely appointed. Karma is more of a mechanical process than a willed process from the divine perspective. Many effects of one own actions are self chosen and directed from an individual perspective.
Please view the video below to see the full explanation of these laws. It is quite informative!
Be well in Light, Love and "Good Karma"