Three Dialogues between Hylas and Philonous, in Opposition to Sceptics and Atheists
PHIL. But how shall we be able to discern those degrees of heat which exist only in the mind from those which exist without it?
HYL. That is no difficult matter. You know the least pain cannot exist unperceived; whatever, therefore, degree of heat is a pain exists only in the mind. But, as for all other degrees of heat, nothing obliges us to think the same of them.
PHIL. I think you granted before that no unperceiving being was capable of pleasure, any more than of pain.
HYL. I did.
PHIL. And is not warmth, or a more gentle degree of heat than what causes uneasiness, a pl