수학 법칙은 현실을 설명하기엔 확실치 않고, 확실한 수학 법칙은 현실과 관련이 없다.

– 알버트 아인슈타인

As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.

– Albert Einstein