Full Idea
It is absurd to say that 'before we introduced our conventions, not all green things were green'.
Gist of Idea
Prior to conventions, not all green things were green?
Source
Theodore Sider (Writing the Book of the World [2011], 06.5)
Book Reference
Sider,Theodore: 'Writing the Book of the World' [OUP 2011], p.102
A Reaction
Well… Different cultures label the colours of the rainbow differently, and many of them omit orange. I suspect the blue/green borderline has shifted.