3
8
4
5
1
1
6
3
7
4
7
4
6
3
5
3
9
7
8
4
7
9
8
7
4
8
9
6
5
6
1
7
4
3
2
8
"The unexamined life is not worth living." — Socrates
"The unexamined life is not worth living." — Socrates
"The essence of mathematics lies in its freedom." — Georg Cantor
"The essence of mathematics lies in its freedom." — Georg Cantor