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"There's a poetry in the materials we use to construct our world of artifacts; it speaks of our long history as a technological species."
- William Gibson

Rachag  
  A caffeine-style stimulant.  

Halleck led the file of men into the room, the staff officers looking grimly serious followed by the younger aides and specialists, an air of eagerness among them. Brief scuffing sounds echoed around the room as the men took seats. A faint smell of rachag stimulant wafted down the table.

"There's coffee for those who want it," the Duke said.

From Dune, by Frank Herbert.
Published by Putnam in 1965
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