About sensible and unreasonable Remorse

Baruch Spinoza, Friedrich Nietzsche and, more recently, Ruediger Bittner argued that regret is unreasonable. My article criticises this view and describes what I consider to be the common-sense understanding of regret: In some - but not all - cases of flawed actions it is unreasonable to regret what one did. The article characterises the common-sense understanding by eight principles and offers an explication of core concepts.