As he sees it

What an extraordinary situation is that of us mortals! Each of us is here for a brief sojourn; for what purpose he knows not, though he sometimes thinks he feels it. But from the point of view of daily life, without going deeper, we exist for our fellow-men — in the first place for those on whose smiles and welfare all our happiness depends, and next for all those unknown to us personally with whose destinies we are bound up by the tie of sympathy.

Albert Einstein "The World As I See It"