What Is Internalism
|Philosophy : Philosophy Definitions|
This is the theory, in contrast to externalism, that states that reasons for action must be internal in the sense that they are based in motivational facts about the agent.
The classic exponent of this is Hume, who stated that it is the desires and goals of the agent that constitute the reasons for actions.
It is a relativistic doctrine, in as much as it takes a fact to be a reason only where it is connected to the mental states of an agent in so far as it is able to motivate them.
It rejects the externalist idea that something can be objectively good, for instance drinking water - even if I do not desire water the fact drinking water is (objectively) good would be a reason for action for the externalist, but not for a Humean.
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