“Deciding on the right thing to do in a situation is a bit like deciding on the right thing to wear to a party. It is easy to decide on what is wrong to wear to a party, such as deep-sea diving equipment or a pair of large pillows, but deciding what is right is much trickier. It might seem right to wear a navy blue suit, for instance, but when you arrive there could be several other people wearing the same thing, and you could end up being handcuffed due to a case of mistaken identity. It might seem right to wear your favorite pair of shoes, but there could be a sudden flood at the party, and your shoes would be ruined. And it might seem right to wear a suit of armor to the party, but there could be several other people wearing the same thing, and you could end up being caught in a flood due to a case of mistaken identity, and find yourself drifting out to sea wishing that you were wearing deep-sea diving equipment after all. The truth is that you can never be sure if you have decided on the right thing until the party is over, and by then it is too late to go back and change your mind, which is why the world is filled with people doing terrible things and wearing ugly clothing, and so few volunteers who are able to stop them.”