Deontology or Kantianism is an obligation-based theory whose chief author was Immanuel Kant, who lived in the 18th century. This theory emphasises the type of action rather than the consequences of that action. Deontologists believe that moral decisions should be made based on one’s duties and the rights of others. According to Kant, morality is based on pure reason. As people have the innate ability to act rationally, they therefore must act morally, irrespective of personal desires. Another way of stating Kant’s theory is “Act morally regardless of the consequences.” - In the case of the doctor and the homeless man, again assuming there is no penalty for either decision, which would a deontologist do?

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