密码学的艺术是使破解系统的成本超过受保护信息的价值。

It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness, it was the spring of hope, it was the winter of despair, we had everything before us, we had nothing before us, we were all going direct to Heaven, we were all doing direct the other way.

市场透明度是资本市场发展的生命线。

成功投资的关键是拥有长期视角和纪律性的方法。

The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.

释义：跟交情浅的朋友说过多的隐私的事情，是愚蠢的。提醒人们在与人交往时，要根据实际情况和关系的深浅，采取适当的态度和行动。