Full Idea
It is plain that other minds have an existence exterior to my mind, since I find them by experience to be independent of it.
Gist of Idea
Experience tells me that other minds exist independently from my own
Source
George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.220)
Book Reference
Berkeley,George: 'The Principles of Human Knowledge etc.', ed/tr. Warnock,G.J. [Fontana 1962], p.220
A Reaction
This is a surprising claim from Berkeley. If trees only exist through their experience in my mind, why don't other minds exist in the same way?