在密码学的世界里，唯一安全的系统是永远不连接到任何网络的系统。
In the world of cryptography, the only secure system is the one that is never connected to any network.
拼命奋斗，保持谦逊。
The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.
You may have the worst of your worries when you most appear to be at ease.
在采矿业，真正的竞争往往是对抗市场的短期思维。