“By virtue of exchange, one man's prosperity is beneficial to all others.”
Economic harmonies, par. 4.110.
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Frédéric Bastiat 33
French classical liberal theorist, political economist, and… 1801–1850Related quotes

πολλοί τοι πλουτοῦσι κακοί, ἀγαθοὶ δὲ πένονται:
ἀλλ᾽ ἡμεῖς τούτοις οὐ διαμειψόμεθα
τῆς ἀρετῆς τὸν πλοῦτον, ἐπεὶ τὸ μὲν ἔμπεδον αἰεί,
χρήματα δ᾽ ἀνθρώπων ἄλλοτε ἄλλος ἔχει.
Source: Elegies, Lines 315-318, also attributed to Solon

Of Adversity
Essays (1625)
Context: The virtue of prosperity, is temperance; the virtue of adversity, is fortitude; which in morals is the more heroical virtue. Prosperity is the blessing of the Old Testament; adversity is the blessing of the New; which carrieth the greater benediction, and the clearer revelation of God's favor. Yet even in the Old Testament, if you listen to David's harp, you shall hear as many hearse-like airs as carols; and the pencil of the Holy Ghost hath labored more in describing the afflictions of Job, than the felicities of Solomon. Prosperity is not without many fears and distastes; and adversity is not without comforts and hopes.

Source: "刘延东出席第五届世界和平论坛开幕式并致辞" https://www.mfa.gov.cn/ce/celk//chn/zgxw/t1382124.htm (16 July 2017)

“Technological change is beneficial only when other jobs replace the ones lost.”
Guardian Weekly, August 08, 1993

“Some virtues are only seen in affliction and some in prosperity.”
No. 257 (25 December 1711).
The Spectator (1711–1714)

Philip Kotler (1993), as cited in: Gerald A. Cole (2003), Strategic Management, p. 131