So many worlds, so much to do,
So little done, such things to be.

The lines juxtapose vast possibility (“so many worlds”) with the speaker’s acute sense of limitation: time is short, work remains unfinished, and personal growth still beckons (“such things to be”). The effect is both humbling and galvanizing. Rather than celebrating achievement, the couplet stresses the disproportion between human aspiration and human capacity, capturing a familiar Victorian tension between expanding horizons (scientific, imperial, intellectual) and the individual’s finite life. Read broadly, it can function as a moral spur—an admonition against complacency—and as an existential lament about the inevitability of incompletion.