“The need of a constantly expanding market for its products chases the bourgeoisie over the whole surface of the globe. It must nestle everywhere, settle everywhere, establish connections everywhere.”

Principles of Communism (1847)
Context: Everywhere the proletariat develops in step with the bourgeoisie. In proportion, as the bourgeoisie grows in wealth, the proletariat grows in numbers. For, since the proletarians can be employed only by capital, and since capital extends only through employing labor, it follows that the growth of the proletariat proceeds at precisely the same pace as the growth of capital. Simultaneously, this process draws members of the bourgeoisie and proletarians together into the great cities where industry can be carried on most profitably, and by thus throwing great masses in one spot it gives to the proletarians a consciousness of their own strength. Moreover, the further this process advances, the more new labor-saving machines are invented, the greater is the pressure exercised by big industry on wages, which, as we have seen, sink to their minimum and therewith render the condition of the proletariat increasingly unbearable. The growing dissatisfaction of the proletariat thus joins with its rising power to prepare a proletarian social revolution.

"Resolution on the Antiwar Congress of the London Bureau" (July 1936)

As quoted in "A feather on the breath of God" by Nur Elmessiri in Al-Ahram Weekly Online Issue No. 385 (9 - 15 July 1998) http://weekly.ahram.org.eg/1998/385/cu2.htm

Against Celsus, Bk. 6, ch. 79; vol. 2, p. 422.
Against Celsus
Context: There was no need that there should everywhere exist many bodies, and many spirits like Jesus, in order that the whole world of men might be enlightened by the Word of God. For the one Word was enough, having arisen as the "Sun of righteousness (Malachi chpt. 3)," to send forth from Judea His coming rays into the soul of all who were willing to receive Him. But if any one desires to see many bodies filled with a divine Spirit, similar to the one Christ, ministering to the salvation of men everywhere, let him take note of those who teach the gospel of Jesus in all lands in soundness of doctrine and uprightness of life, and who are themselves termed "christs" by the Holy Scriptures, in the passage, "Touch not mine anointed, and do not my prophets any harm." For as we have heard that Antichrist cometh, and yet have learned that there are many antichrists in the world, in the same way, knowing that Christ has come, we see that, owing to Him, there are many christs in the world, who, like Him, have loved righteousness and hated iniquity, and therefore God, the God of Christ, anointed them also with the "oil of gladness." But inasmuch as He loved righteousness and hated iniquity above those who were His partners, He also obtained the first-fruits of His anointing, and, if we must so term it, the entire unction of the oil of gladness; while they who were His partners shared also in His unction, in proportion to their individual capacity.

Revolution (2014)

XV. Why we give worship to the Gods when they need nothing.
On the Gods and the Cosmos
Context: The divine itself is without needs, and the worship is paid for our own benefit. The providence of the Gods reaches everywhere and needs only some congruity for its reception. All congruity comes about by representation and likeness; for which reason the temples are made in representation of heaven, the altar of earth, the images of life (that is why they are made like living things), the prayers of the element of though, the mystic letters of the unspeakable celestial forces, the herbs and stones of matter, and the sacrificial animals of the irrational life in us.
From all these things the Gods gain nothing; what gain could there be to God? It is we who gain some communion with them.

Wallerstein (1979) The Capitalist World-Economy. p. 15.

Source: The Production of Security (1849), p. 34-35