Because science and technology began to develop at that time, the speed of information transmission was suddenly much faster than in the past, and they had the opportunity to do a very comprehensive mathematical research, but then because of the information explosion, no one could master all the mathematics in the past. Unless artificial intelligence replaces human brain learning, or human beings complete the transformation of brain senses themselves, the speed and efficiency are much higher than now, that will do. What human beings need to break through most now is their own body rather than external tools. On the contrary, what the ancients need to break through most are all kinds of tools, including information dissemination tools, and under the condition that the brain potential is not fully exerted, the historical background is very important, just like Euclid's "A Masterpiece of Geometry" in ancient Greece, because the efficiency was too low at that time.

Hilbert's greatest contribution was that he raised 23 questions (Hilbert problems) in the mathematical conference held in Paris in 1900, which covered a wide range. The study of these 23 problems has strongly promoted the development of various branches of mathematics. ? 1950, when the American Mathematical Society invited Herman Weil to summarize the history of mathematics in the first half of the 20th century, he wrote that it would be very easy to accomplish this task if the terminology in the Paris problem was not so professional. Just point out which ones have been solved and which ones have been partially solved according to Hilbert's question-"This is a chart". In the past 50 years, "we mathematicians have often followed.

When Hilbert died, Nature published an opinion that it is rare in the world that a mathematician's work is not derived from Hilbert's work in some way. Hilbert is like Alexander in mathematics.

Hilbert's most important book is a small book based on geometry, which can best embody Hilbert's mathematical concepts. He himself is also the founder of one of the three schools (formalism).

He believes that there is no gap between pure mathematics and applied mathematics, and the combination of science and mathematics as a whole can be established.

Besides, Hilbert is a good man, and his infectious optimism makes him a model for young mathematicians of that generation. As he wrote on the tombstone of Gottingen cemetery: We must know, and we will know.