The Metaphysical Elements of Ethics by Immanuel Kant Chapter 11 Page 1

According to the preceding Principles, the Scheme of Duties of Virtue may be thus exhibited

The Material Element of the Duty of Virtue:

Internal Duty of Virtue

My Own End, which is also my duty (My own Perfection)

External Virtue of Duty

The End of Others, the promotion of which is also my duty (The Happiness of Others)

The Law which is

also spring on which the Morality of every free determination of will rests.

The End which is

also spring on which the Legality the Formal Element of the Duty of Virtue.