Consider the fact that, in a few years, I shall be dead. This fact can seem depressing. But the reality is only this. After a certain time, none of t… - Derek Parfit

Why shouldn’t I eat toothpaste? It’s a free world. Why shouldn’t I chew my toenails? i happen to have trodden in some honey. Why shouldn’t I prance across central park with delicate sideways leaps? I know what your answer will be: “it isn’t done”. But it’s no earthly use just saying it isn’t done. If there’s a reason why it isn’t done, give the reason—if there’s no reason, don’t attempt to stop me doing it. All other things being equal, the mere fact that something “isn’t done” is in itself an excellent reason for doing it.

the part of our moral theory... that covers how we affect future generations... is the most important part of our moral theory, since the next few centuries will be the most important in human history.

Take a Swede who is proud of his country’s peaceful record. He might have a similar divided attitude. He may not be disturbed by the thought that Sweden once fought aggressive wars; but if she had recently fought such wars he would be greatly disturbed. Someone might say, “This man’s attitude is indefensible. The wars of Gustavus, or of Karl XII, are as much part of Swedish history.” This truth cannot, I think, support this criticism. Modern Sweden is indeed continuous with the aggressive Sweden of the Vasa kings. But the connections are weak enough to justify this man’s attitude.