Meditation 6.15

15. Some things are hastening to be, others to have come and gone, and a part of what is coming into being is already extinct. Flux and change renew the world incessantly, as the unbroken passage of time makes boundless eternity ever young. In this river, therefore, on which he cannot stand, which of these things that race past him should a man greatly prize? As though he[1] should begin to set his heart on one of the little sparrows that fly past, when already it has gone away out of his sight. Truly the life of every man is itself as fleeting as the exhalation of spirit from his blood or the breath he draws from the atmosphere. For just as it is to draw in a single breath and to return it, which we do every moment, so is it to render back the whole power of respiration, which you acquired but yesterday or the day before, at birth, to that other world from which you first drew it in.