Kurt Gödel

Mathematics Austrian-American 1906 – 1978 527 quotes

Proved incompleteness theorems transforming mathematical logic

Most quoted

"Any consistent formal system F within which a certain amount of elementary arithmetic can be carried out is incomplete; i.e., there are statements of the language of F which can neither be proved nor disproved in F."

— from On Formally Undecidable Propositions of Principia Mathematica and Related Systems, 1931

"Either mathematics is incompletable in this sense, that its evident axioms can never be exhausted by a finite number of formal rules, or else there exist mathematical problems which are undecidable in principle."

— from On Formally Undecidable Propositions of Principia Mathematica and Related Systems I, 1931

"The incompleteness theorems are a profound statement about the limits of formal systems and the indispensable role of human intuition and insight in mathematics."

— from On Formally Undecidable Propositions of Principia Mathematica and Related Systems I, 1931

All quotes by Kurt Gödel (527)

The foundations of mathematics are not arbitrary fictions.

Unpublished notes

The concept of set is not a mere linguistic construct.

What is Cantor's Continuum Problem? 1947

The world is not an illusion.

Unpublished notes

There is an absolute truth in mathematics.

Unpublished notes

The human mind can grasp the essence of things.

Gibbs Lecture 1951

The incompleteness theorems are a profound statement about the nature of knowledge.

On Formally Undecidable Propositions of Principia Mathematica and Related Systems I 1931

The concept of truth is not subjective.

Unpublished notes

The universe is not a meaningless void.

Unpublished notes

There is a spiritual dimension to reality.

Unpublished notes

The human mind is not a blank slate.

Gibbs Lecture 1951

The foundations of mathematics are not arbitrary inventions.

Unpublished notes

The concept of number is not a cultural artifact.

Unpublished notes

The world is not a construct of our minds.

Unpublished notes

There is an objective reality to logic.

Unpublished notes

The human mind can reach for the divine.

Gibbs Lecture 1951

The incompleteness theorems are a challenge to our understanding of the universe.

On Formally Undecidable Propositions of Principia Mathematica and Related Systems I 1931

The concept of proof is not a mere formality.

Unpublished notes

The universe is not a closed box.

Unpublished notes

There is a transcendent reality.

Unpublished notes

The human mind is not limited by the physical world.

Gibbs Lecture 1951