Whatever became of the moment when one first knew about death? There must have been one, a moment, in childhood when it first occurred to you that you don't go on for ever. It must have been shattering – stamped into one's memory. And yet I can't remember it. It never occurred to me at all. What does one make of that? We must be born with an intuition of mortality. Before we know the words for it, before we know that there are words, out we come, bloodied and squalling with the knowledge that for all the compasses in the world, there's only one direction, and time is its only measure.

Tom Stoppard, Rosencrantz and Guildenstern Are Dead (Faber and Faber Limited, 2000) p. 63