The Pen which gives. . . permanence to the evanescent thought of a moment.
-- Horace Smith, Tin Trumpet
Every tornado is a little different, and they are all capricious, evanescent and hard to get a fix on.
-- "Oklahoma Tornado Offers Hints of How a Killer Storm Is Born", New York Times, May 11, 1999
The accidentally famous. . . may write books, appear on talk shows, and, in so doing, attract even greater public attention. This type of celebrity status, of course, is brittle and evanescent.
-- Lawrence M. Friedman, The Horizontal Society