{ 1 } - Act only as you're willing for anyone to act in the same situation, regardless of imagined variations of time or person
{ 2 } - Don't do what you'll later regret. More precisely, treat yourself (in the future) only as you're willing to have been treated by yourself (in the past).
{ 3 } - Principle about how we ought (ideally) to form our moral beliefs
{ 4 } - Keep your actions, resolutions, and desires in harmony with your moral beliefs
{ 5 } - Actions that are so similar that the reasons why one fits in a given moral category also apply to the others

future-regard principle <=> Don't do what you'll later regret. More precisely, treat yourself (in the future) only as you're willing to have been treated by yourself (in the past).