Single Idea 3904

[catalogued under 27. Natural Reality / C. Space / 4. Substantival Space]

Full Idea

I can measure the length of something only if I know that it has not moved between the moment when I locate one end of it and the moment when I locate the other.

Clarification

When you reach the end, the beginning may have moved

Gist of Idea

Measuring space requires no movement while I do it

Source

Roger Scruton (Modern Philosophy:introduction and survey [1994], 25.3)

Book Reference

Scruton,Roger: 'Modern Philosophy: introduction and survey' [Sinclair-Stevenson 1994], p.360


A Reaction

A nice example of how even simple propositions have many presuppositions.