Full Idea
When the agreement of any two ideas appears to our minds, I can no more refuse to perceive, no more avoid knowing it, than I can avoid seeing those objects which I turn my eyes to.
Gist of Idea
When two ideas agree in my mind, I cannot refuse to see and know it
Source
John Locke (Essay Conc Human Understanding (2nd Ed) [1694], 4.20.16)
Book Reference
Locke,John: 'Essay Concerning Human Understanding', ed/tr. Nidditch,P.H. [OUP 1979], p.717
A Reaction
Note that he is not just saying that we cannot resist believing what becomes evident to us, but he actually asserts that we cannot avoid 'knowing' it. This seems to imply that knowledge may be more basic than belief (as Williamson and Hossack argue).