Buildings and featureless shapes flowed by him noiselessly as though borne past immutably on the surface of some rank and timeless tide.
These three men who hated him spoke his language and wore his uniform, but he saw their loveless faces set immutably into cramped, mean lines of hostility and understood instantly that nowhere in the world, not in all the fascist tanks or planes or submarines, not in the bunkers behind the machine guns or mortars or behind the blowing flame throwers, not even among all the expert gunners of the crack Hermann Goering Antiaircraft Division or among the grisly connivers in all the beerů
After Kid Sampson’s legs, he would think of pitiful, whimpering Snowden freezing to death in the rear section of the plane, holding his eternal, immutable secret concealed inside his quilted, armor-plate flak suit until Yossarian had finished sterilizing and bandaging the wrong wound on his leg, and then spilling it out suddenly all over the floor.
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It is one of the immutable laws of physics.
We tend to think that history is written in stone, that it’s unchanging, immutable, fixed. But history isn’t a one-way conversation; it’s a continuing dialogue between the past and the present.
Richard Stengel -- A New Take on J.F.K., Time Magazine, 6/21/07