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Hard · Puzzle #66
8
5
1
3
6
5
4
5
3
1
9
6
5
1
1
7
5
8
9
4
2
3
5
2
9
3
7
4
"Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country." — David Hilbert
"Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country." — David Hilbert
"The more you know, the more you know you don't know." — Aristotle
"The more you know, the more you know you don't know." — Aristotle