" But if we are convinced by this idea that without a future for humanity we would lose interest in a wide range of our activities and confidence in what we value (much like in the immortality case), then we arrive at a startling conclusion. It is not merely enough that we have in place the temporal finitude provided by our own death to ensure our lives have meaning. It is not enough that we die. We also need others to live on after us and without us. We need to die and others need to live. Which means ultimately that the continuing lives of others matter more to us than do our own. "

― Derren Brown , Happy: Why More or Less Everything is Absolutely Fine