The Persons as Ends formulation:

Act in such a way that you treat humanity whether in your own person or in the person of another, always at the same time as an end and never simply as a means. (P 429b, different translation)

• Means
• Treating someone as a means
• Ends
• Persons as ends
• Treating someone as an end
• Treating someone simply as means
• Treating yourself as an end
• What this formulation of the categorical imperative says we must not do
• What this formulation of the categorical imperative says we must do