Invert, always invert: Turn a situation or problem upside down. Look at it backward.
倒置,始终倒置:将情况或问题颠倒过来。反向观察它。
密码学是关于在存在对手的情况下进行通信的。
"The soul becomes dyed with the color of its thoughts."
每个音符都必须有意义。
Teamwork is the yeast that makes the business rise.