Note 35 — Chapter IX

The definition of it in the Organon (Post Analyt. 1. xxiv.), “a happy conjecture of the middle term without time to consider of it.” The quaestio states the phenomena, and the middle term the causation the rapid ascertaining of which constitutes [Greek: anchinoia]. All that receives light from the sun is bright on the side next to the sun. The moon receives light from the sun, The moon is bright on the side next the sun. The [Greek: anchinoia] consists in rapidly and correctly accounting for the observed fact, that the moon is bright on the side next to the sun.