Shelley begins like a cautious economist and ends like a judge passing sentence. In nine lines he lays out a small theory of property: what you earn fairly, you keep, and what you grab dishonestly can be taken back.
The opening concession is more pointed than it first looks. "What men gain fairly–that they should possess" uses "should" to make a moral rule, not just a statement of fact. Then comes the surprising detail that children "may inherit idleness." Shelley does not say they inherit wealth, and the word "idleness" lets a faint sneer slip through even as the right is granted. "This is understood" sounds like a clause in a contract, treating the point as common ground. The most interesting line follows: "Private injustice may be general good." The line admits that idle heirs enjoying what they never earned is unjust to someone, yet argues that tolerating it can serve everyone. The balance of private against general, and injustice against good, makes the paradox sound almost reasonable.
Then comes "But," and the poem turns. Shelley names three ways of getting rich wrongly: "armed wrong," "guilty fraud," and "base compliances." Together they cover the soldier, the swindler and the flatterer. The last is the least obvious. "Compliances" suggests bending to the powerful in return for reward, which is not always a crime in law. Judging by this list, the poem's standard of fairness is moral, not merely legal. The word "base" appears twice in two lines, like a hammer striking the same spot.
The central image is a piece of clothing. Ill-gotten wealth "May be despoiled; even as a stolen dress / Is stripped from a convicted thief." "Despoiled" carries the sense of spoils and plunder, so the plunderer is plundered in turn. The word "may" also returns. In lines 2 and 4 it grants permission to inherit and to tolerate injustice, but in line 7 the same little word grants permission to confiscate. The poem's whole argument turns on that repeated modal verb. The word "convicted" also matters, because it suggests a verdict has been reached. The stripping sounds like a consequence of judgment, not mob revenge.
The clothing metaphor then carries through to the last line. Once the dress is gone, the man is "Left in the nakedness of infamy." What remains is not poverty but disgrace. The punishment is exposure, since his wealth had been hiding what he was.
The form helps the argument. The first four lines settle into tidy couplets, *possess/idleness* and *understood/good*, and the neat sound matches the orderly reasoning. When the poem reaches "wrong," the pattern comes apart. That line has no rhyming partner and is a syllable short of a full ten. "Compliances" and "dress" echo each other only loosely. The rhyme does not close again until *he/infamy*. The sentence from line 5 onward runs on, pulled along by semicolons. It breaks across a line so that "and he" hangs at the end of the line, exposed, just before "Left" arrives. The reader sees the stripped figure stranded in the white space.
It is hard to say whether this roughness is deliberate. The title calls the piece a fragment, so the loosening rhyme may simply reflect something unfinished, but it also suits the shift from calm concession to moral indignation.
The poem is significant because it complicates any simple picture of a radical poet. Shelley is known for his political convictions, yet this passage defends property, even inherited property, as long as it was fairly gained. What matters to him is how wealth was obtained, not merely who holds it. The fragment also leaves a question open: who does the stripping, and by what authority? The poem gives a principle, a punishment and a vivid image, but it leaves the reader to decide who should carry the sentence out.