Full Idea
By 'solidity' either you do not mean any sensible quality, and so it is beside our enquiry; or if you do, it must be hardness or resistance, which are plainly relative to our senses.
Gist of Idea
'Solidity' is either not a sensible quality at all, or it is clearly relative to our senses
Source
George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.173)
Book Reference
Berkeley,George: 'The Principles of Human Knowledge etc.', ed/tr. Warnock,G.J. [Fontana 1962], p.173
A Reaction
Berkeley fails to recognise that a quality can have primary and secondary aspects (hot/high temperature). He is right that primary qualities are not directly perceived. They are judgements.