“I choose to die in a way that I know will be painful, but will save the lives of several other people. I am doing what, knowing the facts and thinking clearly, I most want to do, and what best fulfils my present desires. (In all my examples these two coincide.) I also know that I am doing what will be worse for me. If I did not sacrifice my life to save these other people, I would not be haunted by remorse. The rest of my life would be well worth living.”

— Derek Parfit, Reasons and Persons (1983), p. 131.