No More Learning

For
altho _falshood formally_ and _properly_ so called, consists only in the
_judgement_ (as before I have observed) yet there is an other sort of
_material falshood_ in _Ideas_, when they represent a _thing_ as _really
existent_, tho it does _not exist_; so, for example, the _Ideas_ I have
of _heat_ and _cold_ are so _obscure_ and _confused_, that I cannot
collect from them, whether _cold_ be a           of _heat_, or _heat_ a
_privation_ of _cold_, or whether either of them be a _real quality_, or
whether neither of them be _real_.