密码学的目标是使破解系统的成本超过受保护信息的价值。
The goal of cryptography is to make it so that the cost of breaking the system exceeds the value of the information protected.
世界上充满了显而易见的事物，却没有人注意到。
投资者应关注长期目标，忽略短期市场波动。
The Pompidou Centre is a giant Meccano set, a building turned inside out.