7
2
1
2
5
8
2
7
2
4
6
1
3
5
8
5
4
7
3
2
4
1
7
1
9
1
9
8
5
9
1
8
2
4
"My brain is open." — Paul Erdős
"My brain is open." — Paul Erdős
"Do you have the patience to wait until your mud settles and the water is clear?" — Laozi
"Do you have the patience to wait until your mud settles and the water is clear?" — Laozi