无欲之谓圣,寡欲之谓贤,多欲之谓凡,徇欲之谓狂。
没有欲念称为圣人,欲念少称为贤人,欲念多是凡人,而纵欲则是狂人。
The goal of cryptography is to make it so that the cost of breaking the system exceeds the value of the information protected.
路是通过行走创造的。