‘This same flower that smiles to day / Tomorrow will be dying’

A 1648 poem by the English poet Robert Herrick tells us to do this. To Carpe diem, in other words, to “seize the day”

Here it is:

Gather ye Rose-buds while ye may,
    Old Time is still a-flying:
And this same flower that smiles to day,
    To morrow will be dying.

The glorious Lamp of Heaven, the Sun,
    The higher he’s a getting;
The sooner will his Race be run,
    And neerer he’s to Setting. 

That Age is best, which is the first,
    When Youth and Blood are warmer;
But being spent, the worse, and worst
    Times, still succeed the former.

Then be not coy, but use your time;
    And while ye may, go marry:
For having lost but once your prime,
    You may forever tarry.