FTP, what is this poem with opens with the advice "Gather ye Rose-buds while ye may," perhaps the best known work by Robert Herrick?
The second stanza of this poem describes the sun as "the glorious Lamp of Heaven," and notes that the higher it gets, the "sooner will his Race be run."  The third quatrain holds that the best age is the first, "When Youth and Blood are warmer," but observes that the warmth will soon be spent, while in the fourth and final quatrain, the poet again addresses the title figures, urging them to marry while still in their prime.  FTP, what is this poem with opens with the advice "Gather ye Rose-buds while ye may," perhaps the best known work by Robert Herrick?
The second stanza of this poem describes the sun as "the glorious Lamp of Heaven," and notes that the higher it gets, the "sooner will his Race be run."  
To the Virgins, to make much of Time