The mind can be considered as a physical symbol system.
心灵可以被视为一个物理符号系统。
每个数学问题都有一个解决方案；只是需要时间和创造力来找到它。
The study of L-functions is a window into the hidden structure of numbers.
The bank is not a pawnshop, the bank is a credit intermediary.
自由是上帝赐予的权利。