David Ricardo：On the Principles of Political Economy and Taxation, Excerpt 38

for such are the sums requisite to place his profits on a par with others, and to replace his capital at the end of ten years; or, which is the same thing, such are the annuities which 20,000_l._ would purchase for ten years at those rates. If the machine would last only three years, when profits were 10 per cent.

Source： https://www.gutenberg.org/ebooks/33310
Locator：Excerpt 38 · Verified：2026-10-19 · Verification：Short excerpt

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