Cryptography is about communication in the presence of adversaries.
密碼學(xué)是關(guān)于在存在對(duì)手的情況下進(jìn)行通信的。
Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.