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Are there any other interesting aspects about the Irving Fisher article?
Irving Fisher is probably best remembered today in neoclassical economics for his theory of capital, investment, and interest rates.
What was Irving Fisher's quote on interest rates?
The relative price of goods available at a future date, in terms of goods sacrificed now, is measured by the interest rate.

Question: What was his quote on capital
Self-contained rewrite: What was Irving Fisher's quote on capital?