Perception and knowledge

Reasoning and calculation

λογισμός

logismos

Logismos is the activity of reasoning or calculating.

From the book

Stobaeus, Volume I

John Stobaeus · Diotimos Editions · 2026

Browse this book’s lexicon →

Orientation

At a Glance

  • The wordLogismos is the activity of reasoning or calculating.
  • In StobaeusIn the Hermetic account, reasoning supplies what desire lacks and brings it into a settled relation with soul, producing self-control.
  • In this edition“Reasoning” suits the psychic operation; “calculation” belongs where reckoning is foregrounded.
  • A place to beginReasoning orders desire and supplies its deficiency.
English renderings
reasoning; calculation; deliberative thought

Meaning

Logismos is the activity of reasoning or calculating. It is related to logos but often emphasizes a process or exercise rather than an account or principle.

Use in the book

In the Hermetic account, reasoning supplies what desire lacks and brings it into a settled relation with soul, producing self-control. A separate account associates reasoning with memory gathered through images into universal judgments. These uses explain why calculation is not limited to arithmetic.

Places to read

  1. I.49.4.1Reasoning orders desire and supplies its deficiency.
  2. I.49.54.6Reasoning gathers memory through images into universal judgments.

Translation in this edition

“Reasoning” suits the psychic operation; “calculation” belongs where reckoning is foregrounded.

Source note

Wachsmuth, volume I, printed pp. 321–322, 428. The two selected accounts have distinct settings and should not be combined into one unqualified faculty theory.