From a logical vantage point, an instructive observation was offered by the Dutch logician-philosopher Evert W. Beth in 1955 and independently (in a slightly different form) by the Finnish philosopher Jaakko Hintikka.
It's a wonderfully instructive observation.
If you want to re-examine that period of time for insight into the here and now, I'd say this illumination of the basic character of the members of the Democratic Party is a far more instructive observation to poach from that era.
Especially instructive are his observations about the story's bittersweet final page — a happy ending that isn't truly happy, made of six perfectly paced panels, a tombstone and a signature.
Gladwell's observations are instructive, but I'm not sure they take into account the full range of economic forces at work.
Short, extremely instructive collection of economic observations by one of America's most insightful economists.
To investigate C60 formation in circumstellar environments, it is instructive to compare the observations with experimental knowledge.
The exchange cited in Christopher Caldwell's article (and elsewhere) between the candidates Ron Paul and Rudolph Giuliani at the South Carolina debate is instructive: Paul's accurate observation was apparently trumped by Giuliani's showmanship (July 22).
But just that observation is instructive because of what we have learnt in the past two weeks.
It is instructive to compare the observation with that of conventional superconductors where the thermally excited quasiparticles of the electron system are dominant carriers of heat; a similar situation is revealed in Rb3C60.
