Once, they would have meant something to Svetlana, but now all she felt was a faint prickly of recollection… — Alastair Reynolds

Once, they would have meant something to Svetlana, but now all she felt was a faint prickly of recollection. Fluency with mathematics—in the context of any kind of engineering discipline or physical science—was a use-it-or-lose-it skill.

p. 294Source: Wikiquote · CC BY-SA 4.0