Time itself flows on with constant motion, just like a river: for no more than a river can the fleeting hour stand still. As wave is driven on by wave, and, itself pursued, pursues the one before, so the moments of time at once flee and follow, and are ever new.
OvidNothing in the entire universe ever perishes, believe me, but things vary, and adopt a new form. The phrase being born is used for beginning to be something different from what one was before, while dying means ceasing to be the same. Though this thing may pass into that, and that into this, yet the sums of things remains unchanged.
Ovid