### „Every good mathematician is at least half a philosopher, and every good philosopher is at least half a mathematician.“

— Gottlob Frege mathematician, logician, philosopher 1848 - 1925

Attributed to Frege in: A. A. B. Aspeitia (2000), Mathematics as grammar: 'Grammar' in Wittgenstein's philosophy of mathematics during the Middle Period, Indiana University, p. 25