And as a ship that passeth over the waves of the water, which when it is gone by, the trace thereof cannot be found, neither the pathway of the keel in the waves;
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Hesychius of Jerusalem
"Can you find the tracks of a passing boat or of an eagle seeking its prey?" As indeed the sea does not preserve the tracks of a boat, or the air, those of an eagle seeking its prey, in the same way that their tracks are not found, so the abundance of this world, when it passes, leaves no trace of happiness. It is forgotten along with what caused it. Thus Job despised all the fragility of this life, and taught us to not linger over it.