We know that the poor are distressed by their many wants, and that nobody relieves them; but if the rich feel resentment, it is at lacking any single thing, or meeting with resistance from a single person.

[On sait que les pauvres sont chagrins de ce que tout leur manque, et que personne ne les soulage; mais s’il est vrai que les riches soient colères, c’est de ce que la moindre chose puisse leur manquer, ou que quelqu’un veuille leur résister.]

Jean de La Bruyere
Jean de La Bruyère (1645-1696) French essayist, moralist
The Characters [Les Caractères], ch. 6 “Of Gifts of Fortune [Des Biens de Fortune],” § 48 (6.48) (1688) [tr. Stewart (1970)]
    (Source)

(Source (French)). Alternate translations:

The Poor are troubled that they want all things, and no body comforts them. The Rich are angry that they can want the least thing, or that any one would resist them.
[Bullord ed. (1696)]

The Poor are troubled that they want every thing, and no body comforts them. The Rich are angry that they should want the least thing, or that any one should oppose them.
[Curll ed. (1713)]

The Grief of the Poor is, that they want all Things, and no body comforts them. The Rich are angry if they want the least Thing, is any one contradict or oppose them.
[Browne ed. (1752)]

It is well known that the poor are sad because they want everything and nobody comforts them; but if it be true that the rich are irascible, it is because they may want the smallest thing, or that some one might oppose them.
[tr. Van Laun (1885)]