David Hilbert: Faith in Mathematics, Not in Religion

David Hilbert is regarded as one of the greatest mathematicians of the 20th century. His work had a profound impact on the mathematical community, especially in the fields of mathematical foundations and logic. Although he did not openly publish criticisms of religion like Bertrand Russell, his attitude toward mathematics and his advocacy of the “formalism” school clearly reveal his disregard for religious belief.

Mathematics as the Only Truth
One of Hilbert’s most famous mottos is “Wir müssen wissen, wir werden wissen” (“We must know, we will know”). This phrase not only reflects his immense confidence in the power of mathematics but also embodies his belief that human reason is capable of solving all problems without reliance on any supernatural force. For him, mathematics itself was a form of ultimate faith.

He maintained that all of mathematics could be built upon a finite, consistent set of axioms, and that all theorems could be derived through formal logic. This “axiomatic method” represented the ultimate pursuit of mathematical truth. It allowed no ambiguity or unverified assumptions, which were precisely the hallmarks of religious belief.

The Silence of an “Atheist”
Hilbert never publicly declared himself an atheist, but his ideas and way of life kept him far from religion. He devoted his energy entirely to mathematics, treating it as a rigorous and internally consistent system. He believed that if a proposition could not be proven, then it had no meaning. This conviction stood in stark opposition to religious doctrines, many of which rest upon claims that cannot be proven or disproven.

In his view, belief in God or in any supernatural power was entirely incompatible with the mathematical truth he pursued. In the era in which he lived, mathematicians were striving to build a solid, contradiction-free foundation for mathematics. Religious faith, however, rested precisely on unverifiable beliefs, a stance completely at odds with the academic rigor he sought.

Conclusion
In sum, David Hilbert’s rejection of religion did not come from public criticism of it, but from his profound faith in mathematics. He believed that human reason, through strict logic and the axiomatic method, could comprehend and master truth. For him, mathematics was a self-validating, flawless system, and no supernatural belief could compare to such a pure pursuit of reason. His life and work stood as the best testimony to his conviction that “human reason will ultimately solve all problems.”