Since I’m so late, here’s one from the Poems Written in Early Youth section of The Complete Poems & Plays of T.S. Eliot. You can find this section hiding at the very end of the book. And you will find it because just about everybody knows somebody with this edition.
Song If space and time, as sages say Are things that cannot be, The fly that lives a single day Has lived as long as we. But let us live while yet we may, While love and life are free, For time is time, and runs away, Though sages disagree. The flowers I sent thee when the dew Was trembling on the vine Were withered ere the wild bee flew To suck the eglantine. But let us haste to pluck anew Nor mourn to see them pine, And though the flowers of life be few Yet let them be divine.