John Maynard Keynes, Essays In Biography (1933); Chapter. "Alfred Marshall," p. 223.

The general theory of economic equilibrium was strengthened and made effective as an organon of thought by two powerful subsidiary conceptions — the Margin and Substitution. The notion of the Margin was extended beyond [Utility]] to describe the equilibrium point in given conditions of any economic factor which can be regarded as capable of small variations about a given value,or in its functional relation to a given value.

— John Maynard Keynes on Utility

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "The general theory of economic equilibrium was strengthened and made effective as an organon of thought by two powerful subsidiary conceptions — the Margin and Substitution. The notion of the Margin was extended beyond [Utility]] to describe the equilibrium point in given conditions of any economic factor which can be regarded as capable of small variations about a given value,or in its functional relation to a given value." in the context of "John Maynard Keynes, Essays In Biography (1933); Chapter. "Alfred Marshall," p. 223." to mean that wisdom is timeless.

Source: Wikiquote: "Utility" (Quotes) The 'What it means' explanation text was generated by Google Gemini Flash (accessed January 18, 2026). https://gemini.google.com/app
John Maynard Keynes

About John Maynard Keynes

John Maynard Keynes, 1st Baron Keynes of Tilton (5 June 1883 – 21 April 1946) was a British economist whose ideas, known as Keynesian economics, had a major impact on modern economic and political theory and on many governments' fiscal policies.