18 Quotes by David Kahn

When we think of ageing of the face,

We don't usually think of the shrinking of the bones or manage this in terms of ageing. I think we need to look at a way to combine a traditional face-lift with something that adds volume, like with fat injections.

We see allergic tendencies much more common in children than adults, and nobody really knows exactly why that is. The reality is, we can't quite understand the aging process of the immune system, but it seems to change.

Our customers love the Vision series of thermostats -- they are easy to use and can be removed from the wall for convenient programming. Our customers really appreciate that the Vision thermostats automatically adjust for daylight savings.

As we age, not only do we lose fat in our faces but our bones actually change in contour, often making us look older than we feel.

The multiple human needs and desires that demand privacy among two or more people in the midst of social life must inevitably lead to cryptology wherever men thrive and wherever they write. Cultural diffusion seems a less likely explanation for its occurrence in so many areas, many of them distant and isolated.

I said he’s the best at what he does. Not at what I do.

Every weapon of cryptanalytic science – which in the stratospheric realm of this solution drew heavily upon mathematics, using group theory, congruences, Poisson distributions – was thrown into the fray.

Much of the history of cryptology of this time is a patchwork, a crazy quilt of unrelated items, sprouting, flourishing, withering. Only toward the Western Renaissance does the accreting knowledge begin to build up a momentum. The story of cryptology during these years is, in other words, exactly the story of mankind.