始终为最坏的情况做计划。
Always plan for the worst-case scenario.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
Machinery and labor-saving devices are only valuable as they serve to reduce the cost of manufacture.
心脏是一个拳头大小的肌肉。继续爱，继续战斗。
I'm the reason your space won't expand.
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。