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Cab Quote by G. H. Hardy

“I remember once going to see him [Ramanujan] when he was lying ill at Putney. I had ridden in taxi-cab No. 1729, and remarked that the number seemed to me rather a dull one, and that I hoped it was not an unfavourable omen. "No," he replied, "it is a very interesting number; it is the smallest…” quote by G. H. Hardy
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“I remember once going to see him [Ramanujan] when he was lying ill at Putney. I had ridden in taxi-cab No. 1729, and remarked that the number seemed to me rather a dull one, and that I hoped it was not an unfavourable omen. "No," he replied, "it is a very interesting number; it is the smallest number expressible as a sum of two cubes in two different ways."”

G. H. Hardy

About This Quote

Source Letter to Ramanujan, 1919

Hardy describes the number 1729 as unremarkable until Ramanujan reveals its unique mathematical property as the smallest taxicab number.

In simple terms: 1729 is special for being expressible as two cubes in two ways.

Key Takeaway

Recognize hidden depth in ordinary things.

Themes

mathematics curiosity discovery

Mood

inquisitive enthusiastic

Type

educational inspirational

When to use this quote

  • teaching
  • problem solving
  • research discussions

Key Concepts

taxicab numbers number theory

Questions to Reflect On

  • What ordinary objects might hold surprising properties?
  • How can we cultivate curiosity about the mundane?
A Different Perspective

Focusing only on surface appearances can miss deeper significance.

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