Every mathematical problem has a solution; it just takes time and effort to find it.
每个数学问题都有一个解决方案;只是需要时间和努力去找到它。
1967年10月8日切腿部不幸中弹,包扎伤口时被捕,切平静的说。
The habit of committing far more time to learning and thinking than to doing is no accident.