Yannick Minvielle died in the midst of a terrorist attack in…

Yannick Minvielle died in the midst of a terrorist attack in Paris, France, on November 13, 2015. Minvielle was at a concert when gunmen entered the theatre and began shooting. Minvielle jumped in front of his girlfriend, saving her life by sacrificing his own. How does this tragic case relate to psychological egoism?

James truly loves playing marbles and is quite good at the g…

James truly loves playing marbles and is quite good at the game. Over time, he has realized that if he wishes to play, he cannot always play “for keepsies”—in which the winner of a round gets to keep the marbles of the opponent—because although he gets more marbles, his opponents decline to play with him again. A psychological egoist would likely conclude that James

A common practice in Denmark is for parents to leave infants…

A common practice in Denmark is for parents to leave infants in strollers outside cafés or restaurants. There are relatively few cases of child abduction or injury. In the United States, following such practices would cause parents to be cited for child neglect or endangerment. This difference demonstrates which of the following?