Begin with the simplest examples.
Immer mit den einfachsten Beispielen anfangen.
Original text (German)
Notes from Wikiquote
Hilbert-Courant (1984) by Constance Reid, p. 104; German version quoted in Algebra by Michael Artin
Original text (German)
One of the supreme achievements of purely intellectual human activity.
No one shall expel us from the paradise that Cantor has created.
Arithmetical symbols are written diagrams and geometrical figures are graphic formulas.
Quote text and notes from Wikiquote: David Hilbert (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.