Thomas Nagel, NYU Professor:

Even if you produce a great work of literature which continues to be read thousands of years from now, eventually the solar system will cool or the universe will wind down and collapse and all trace of your effort will vanish…The problem is that although there are justifications for most things big and small that we do within life, none of these explanations explain the point of your life as a whole…It wouldn’t matter if you had never existed. And after you have gone out of existence, it won’t matter that you did exist.

Thomas Nagel, What Does It All Mean?, 96.