生命诚可贵，道义价更高，“舍身取义”传唱千年，为了国家和民族，为了道义，无数仁人志士抛头颅酒热血，九死不悔。

"The ultimate test of a machine learning algorithm is its ability to perform well on new, unseen data."

Old minds are like old horses; you must exercise them if you wish to keep them in working order.