Full Idea
Defeasible reasoning requires us to be able to think about our thoughts.
Gist of Idea
Defeasible reasoning requires us to be able to think about our thoughts
Source
John L. Pollock (Epistemic Norms [1986], 'Cog.Mach')
Book Reference
'Epistemology - An Anthology', ed/tr. Sosa,E. /Kim,J. [Blackwell 2000], p.213
A Reaction
This is why I do not think animals 'know' anything, though they seem to have lots of true beliefs about their immediate situation.