On this day 163 years ago, on January 23, 1862 (December 24, 1861 lunar calendar), the famous German mathematician David Hilbert was born. David Hilbert David Hilbert (January 23, 1862 - February 14, 1943), a German mathematician, was one of the most influential mathematicians of the 19th and early 20th centuries. Born in Königsberg, he is respected as a great mathematician and scientist for inventing and developing a large number of ideas. Hilbert and his students made important contributions to the formation of the mathematical foundations of quantum mechanics and general relativity. He is also one of the founders of proof theory, mathematical logic, and the distinction between mathematics and meta-mathematics. He enthusiastically supported Cantor's set theory and infinite numbers. 23 problems in the new century are put forward. These 23 problems involve most of the important fields of modern mathematics, and the famous Goldbach conjecture is part of the eighth problem. The study of these problems has strongly promoted the development of various branches of mathematics in the 20th century. Died in Göttingen, Germany in 1943. His books include "The Complete Works of Hilbert", "Geometry Foundations", "General Theoretical Foundations of Linear Integral Equations", etc. David Hilbert