世俗的君子,如果他很穷你却说他很富,他就会发怒;如果他不义你却说他有义,就很高兴。 
The key to understanding cryptography is understanding that it's not just about keeping secrets, but about managing trust.
应对不自由世界的唯一方法就是变得如此绝对自由,以至于你的存在本身就是一种反叛。