“When the idle poor
Become the idle rich
You'll never know
just who is who
or who is which.”

Saadi as translated in The Gulistān : Or, Rose-garden, of Shek̲h̲ Muslihu'd-dīn Sādī of Shīrāz as translated by Edward Backhouse Eastwick (1880), p. 203.
Misattributed

Source: Little Brother (2008)

2016, Interview with Bill Kristol (2016)

Act 4, sc. 5
The Devil and the Good Lord (1951)

1961, Inaugural Address
Variant: If a free society cannot help the many who are poor, it cannot save the few who are rich.
Context: To those people in the huts and villages of half the globe struggling to break the bonds of mass misery, we pledge our best efforts to help them help themselves, for whatever period is required — not because the communists may be doing it, not because we seek their votes, but because it is right. If a free society cannot help the many who are poor, it cannot save the few who are rich.

Rich Dad Poor Dad: What the Rich Teach Their Kids About Money-That the Poor and the Middle Class Do Not!

1790s, Letter to the Addressers (1792)
Context: It is from a strange mixture of tyranny and cowardice that exclusions have been set up and continued. The boldness to do wrong at first, changes afterwards into cowardly craft, and at last into fear. The Representatives in England appear now to act as if they were afraid to do right, even in part, lest it should awaken the nation to a sense of all the wrongs it has endured. This case serves to shew that the same conduct that best constitutes the safety of an individual, namely, a strict adherence to principle, constitutes also the safety of a Government, and that without it safety is but an empty name. When the rich plunder the poor of his rights, it becomes an example of the poor to plunder the rich of his property, for the rights of the one are as much property to him as wealth is property to the other and the little all is as dear as the much. It is only by setting out on just principles that men are trained to be just to each other; and it will always be found, that when the rich protect the rights of the poor, the poor will protect the property of the rich. But the guarantee, to be effectual, must be parliamentarily reciprocal.

Source: My Story