Time Personified

That figure we see at New Year's taking out the old year is "Father Time."  He carries a scythe, a farm implement for cutting down wheat and other grains, only he harvests youth.  Conventionally, he is also pictured with some kind of timepiece, such as a clock, as here, an hour glass, a watch.

In this poem, Time harvests "rosy lips and cheeks"; but is that a reason to stop loving one's beloved?  Ideally, no.  That would be "fool"-ish.