Cryptography is the art of transforming information into a form that is unintelligible to anyone who does not possess the key to unlock it.
密码学是将信息转换成一种形式,使任何没有解锁密钥的人都无法理解的艺术。
译文:借鉴前代兴衰,考察当下得失。《通鉴》的写作宗旨,直指现实关怀。
The book is a mirror: if an ape looks into it, an apostle is unlikely to look out.