Frase

[Sobre la demostración de Euclides de la infinitud de los números primos]
"The proof is by reductio ad absurdum, and reductio ad absurdum,
which Euclid loved so much, is one of a mathematician’s
finest weapons. It is a far finer gambit than any chess gambit: a
chess player may offer the sacrifice of a pawn or even a piece, but
a mathematician offers the game."
Fuente: G.H. Hardy "A Mathematician’s Apology"