Peter Singer on altrusm:
The possibility of taking the point of view of the universe overcomes the problem of finding meaning in our lives, despite the ephemeral nature of human existence when measured against all the eons of eternity. Suppose that we become involved in a project to help a small community in a developing country to become free of debt and self-sufficient in food. The project is an outstanding success.... Now someone might say: "What good have you done? In a thousand years these people will all be dead, and their children and grandchildren as well, and nothing that you have done will make any difference."
I am not defending the objectivity of ethics in the traditional sense. Ethical truths are not written into the fabric of the universe: to that extent the subjectivist is correct…We cannot expect that this higher ethical consciousness will become universal. There will always be people who don't care for anyone or anything, not even for themselves.
To be fair, in the essay as a whole, Singer labors to argue for altruism despite these bleak concessions. But consider the hand he dealt himself.