Topology and Abstract Algebra as Two Roads of Mathematical Comprehension (1932)
The Mathematical Way of Thinking (1940)
David Hilbert 1862-1943 (1944)
David Hilbert and His Mathematical Work (1944)
Relativity Theory as a Stimulus in Mathematical Research (1949)
A Half-Century of Mathematics (1951)
Axiomatic Versus Constructive Procedures in Mathematics (1953)