Note 3 — Chapter XXX · POLITIKUS.
Reading edition
Plato, Politik. p. 284 E. τὸ μέτριον, τὸ πρέπον, τὸν καιρόν, τὸ δέον, &c.
The reader will find these two varieties of mensuration, here distinguished by Plato, illustrated in the “two distinct modes of appreciating weight” (the Absolute and the Relative), described and explained by Professor Alexander Bain in his work on The Senses and The Intellect, 3rd edition, p. 93. This explanation forms an item in the copious enumeration given by Mr. Bain of the fundamental sensations of our nature.