Capitalist production is simply impossible without an equal rate of profit.
 Karl Marx, Das Kapital (1894). copy citation

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Author Karl Marx
Source Das Kapital
Topic profit production
Date 1894
Language English
Reference
Note
Weblink https://www.marxists.org/archive/marx/works/download/pdf/Capital-Volume-...

Context

“Its existence is simply tied up with capital. The latter, provided it is strong enough to secure a profit for itself, is compelled by competition also to secure for itself a rate of profit equal for all sums of capital. Capitalist production is simply impossible without an equal rate of profit. Given this mode of production, the quantity of profit for the individual capitalist can, at a certain rate of profit, depend only on the magnitude of his capital. On the other hand, profit consists of surplus-value, of unpaid labour.” source