My uncle was a very prominent mathematician, and he told me, "Look, there's a problem which I could not solve 25 years ago, and which nobody can solve.
제 삼촌은 굉장히 유명한 수학자였으며 제게 말했습니다. "봐라, 지난 25년간, 나와 그 누구도 풀지 못했던 문제가 있다.