Full Idea
It would be silly to suggest that what is a matter of experience must be justified by reason, and it makes no sense to say that what we are insisting upon as a matter of direct experience must itself be established by experience.
Gist of Idea
It is silly to say that direct experience must be justified, either by reason, or by more experience
Source
Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
Book Reference
Harré,R/Madden,E.H.: 'Causal Powers: A Theory of Natural Necessity' [Blackwell 1975], p.56
A Reaction
The first half is now known as the 'Moorean' view (Idea 6349). It does make sense, when faced with a weird experience, to assess and establish it by means of a combination of reason and other experiences. It's called 'coherence'!
Related Idea
Idea 6349 I can prove a hand exists, by holding one up, pointing to it, and saying 'here is one hand' [Moore,GE]