Archive for the ‘quote’ Category

Antinomies on the landscape

Monday, October 1st, 2007

False Creek in Vancouver, from near Granville Island (which is not an island)

From the Dorling Kindersley Eyewitness Travel Guide to the Pacific Northwest, page 218:

In spite of its name, False Creek is not a creek at all….

Programming Perlisms

Thursday, September 6th, 2007

Reminiscing about Structure and Interpretation of Computer Programs led me to pull the book off the shelf, and I was taken in once more by the epigraph from the late Alan J. Perlis:

I think that it’s extraordinarily important that we in computer science keep fun in computing. When it started out, it was an awful lot of fun. Of course, the paying customers got shafted every now and then, and after a while we began to take their complaints seriously. We began to feel as if we really were responsible for the successful, error-free perfect use of these machines. I don’t think we are. I think we’re responsible for stretching them, setting them off in new directions, and keeping fun in the house. I hope the field of computer science never loses its sense of fun. Above all, I hope we don’t become missionaries. Don’t feel as if you’re Bible salesmen. The world has too many of those already. What you know about computing other people will learn. Don’t feel as if the key to successful computing is only in your hands. What’s in your hands, I think and hope, is intelligence: the ability to see the machine as more than when you were first led up to it, that you can make it more.

And then this from his foreword to the book:

In its semantic structure Scheme is as closely akin to Algol 60 as to early Lisps. Algol 60, never to be an active language again, lives on in the genes of Scheme and Pascal. It would be difficult to find two languages that are the communicating coin of two more different cultures than those gathered around these two languages. Pascal is for building pyramids — imposing, breathtaking, static structures built by armies pushing heavy blocks into place. Lisp is for building organisms — imposing, breathtaking, dynamic structures built by squads fitting fluctuating myriads of simpler organisms into place.

Brackets

Monday, April 17th, 2006

A thought for the day:

Our federal income tax law defines the tax y to be paid in terms of the income x; it does so in a clumsy enough way by pasting several linear functions together, each valid in another interval or bracket of income. An archeologist who, five thousand years from now, shall unearth some of our income tax returns together with relics of engineering works and mathematical books, will probably date them a couple of centuries earlier, certainly before Galileo and Vieta.

—Hermann Weyl, “The Mathematical Way of Thinking,” 1940.

Daniel J. Velleman has a suggestion for the Internal Revenue Service (thanks to Barry Cipra for this pointer).

Quote

Wednesday, January 11th, 2006

Ask any molecule what it thinks about the second law of thermodynamics and it will laugh at the question. All the same the molecules, collectively, uphold the second law.

—John Archibald Wheeler, At Home in the Universe, 1994, p. 283.

Quote of the day

Tuesday, January 10th, 2006

In the fall of 1972 President Nixon announced that the rate of increase of inflation was decreasing. This was the first time a sitting president used the third derivative to advance his case for reelection.

—Hugo Rossi, Notices of the AMS, vol. 43, no. 10, Oct. 1996

Quote of the day

Monday, January 9th, 2006

It is by no longer having to think about things that civilisation progresses.

—Joseph E. Stoy, Denotational Semantics