The categorical imperative is an unconditional command, which, for Kant, told us what our duties were. This is a deontological theory, which means it points to the actions that are good in themselves and pursue the ultimate aim of reaching supreme good, while also telling us which actions are forbidden. This theory is based on duty. To act morally is to do one’s duty, and one’s duty is to obey the moral law. This theory distinguishes between duty and inclination and accepts that if something can’t be done, then there is no guilt. They make no reference to desires or needs. He believed that the only way we can make selfless, rational moral decisions is by acting out of a sense of duty. Kant believed that if we ‘ought’ to do something, then it