密码学的目标是使破解系统的成本超过受保护信息的价值。
I try to leave every place a little better than I found it.
身体是我们把握世界的工具。
巴菲特在2004年伯克夏股东大会上说
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
译文:读书学习,每天都要补上自己的不足,半途而废和剪断织布的线有啥区别?(乐羊子妻劝丈夫坚持学习)