Jules Henri Poincare

1854 - 1912

A Quote by Jules Henri Poincaré on adoption, mind, words, and world

. . . by natural selection our mind has adapted itself to the conditions of the external world. It has adopted the geometry most advantageous to the species or, in other words, the most convenient. Geometry is not true, it is advantageous.

Jules Henri Poincare (1854 - 1912)

Source: Science and Method.

Contributed by: Zaady

A Quote by Jules Henri Poincaré on debate, disease, generations, mathematics, and theory

Later generations will regard Mengenlehre (set theory) as a disease from which one has recovered. [Whether or not he actually said this is a matter of debate amongst historians of mathematics.]

Jules Henri Poincare (1854 - 1912)

Source: The Mathematical Intelligencer, vol 13, no. 1, Winter 1991.

Contributed by: Zaady

A Quote by Jules Henri Poincaré on discovery, generations, knowledge, preparation, and spontaneity

Mathematical discoveries, small or great are never born of spontaneous generation. They always presuppose a soil seeded with preliminary knowledge and well prepared by labour, both conscious and subconscious.

Jules Henri Poincare (1854 - 1912)

Contributed by: Zaady

A Quote by Jules Henri Poincaré on art, giving, mathematics, names, poetry, and quotations

Mathematics is the art of giving the same name to different things. [As opposed to the quotation: Poetry is the art of giving different names to the same thing].

Jules Henri Poincare (1854 - 1912)

Contributed by: Zaady

A Quote by Jules Henri Poincaré on facts, justice, and science

Science is facts; just as houses are made of stones, so is science made of facts; but a pile of stones is not a house and a collection of facts is not necessarily science.

Jules Henri Poincare (1854 - 1912)

Source: La Science et l'hypothèse.

Contributed by: Zaady

A Quote by Jules Henri Poincaré on life and perception

Talk with M. Hermite. He never evokes a concrete image, yet you soon perceive that the more abstract entities are to him like living creatures.

Jules Henri Poincare (1854 - 1912)

Source: G. Simmons Calculus Gems, New York: McGraw Hill Inc., 1992.

Contributed by: Zaady

A Quote by Jules Henri Poincaré

Hypotheses are what we lack the least.

Jules Henri Poincare (1854 - 1912)

Contributed by: Zaady

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