selfless

Do you think that humans (or some humans) are altrusitic? Is it possible to do things for others completely selflessly or is the good feeling from such acts or personal benefit in doing what one thinks is "right" always present and the real reason why people help others?

So I just had a 2 hour debate with my housemate as to whether or not there is such a thing as a truly selfless act. Basically the just of it was, I say that there is not. Any action you take has some benefit, whether it be an immediate benefit (short or long lived) or a benefit in the...