Final answer:
Kant came up with the concept of Categorical Imperative that characterized the duties we humans have to each other.
Step-by-step explanation:
Kant came up with the concept of Categorical Imperative that characterized the duties we humans have to each other. According to Kant, the Categorical Imperative is a moral principle that states that we should act in such a way that our actions could become a universal law, meaning that we should only act in a way that we would want everyone else to act in similar circumstances.