Bruce Schneier

If you think technology can solve your security problems, then you don't understand the problems and you don't understand the technology.

Think of your existing power as the exponent in an equation that determines the value of information. The more power you have, the more additional power you derive from the new data.

There are two types of encryption: one that will prevent your sister from reading your diary and one that will prevent your government.

I have always had confidence in my own ability.

It's hard to say exactly what it is about face-to-face contact that makes deals happen, but whatever it is, it hasn't yet been duplicated by technology.