Personally I think the only meaning your life will ever have is whatever your involvement means to someone else. The best strategy I think, if you want your life to mean something, try making someone else's life meaningful. But if you want your life to mean something five billion years from now, it won't –no matter what. Sorry. But what matters now still matters now.

Patheos - Anti-theist Answers to Christian Questions (November 22, 2015)