一个好的数学家总是准备好进行概括。
The most advanced technology is worthless if it doesn't serve the farmer's needs.
The more you sweat in peace, the less you bleed in war.
技术本身没有好坏,关键看你怎么用它。
Being a detective is like being a scientist. You have to notice things other people don’t notice.
"Books are the maps that guide us through life."