SCEPTIC, because I deny what you affirm, to wit, the existence of
Matter? Since, for aught you can tell, I am as peremptory in my denial,
as you in your affirmation.

HYL. Hold, Philonous, I have been a little out in my definition; but
every false step a man makes in discourse is not to be insisted on. I
said indeed that a SCEPTIC was one who doubted of everything; but I
should have added, or who denies the reality and truth of things.

PHIL. What things? Do you mean the principles and theorems of sciences?
But these you know are universal intellectual notions, and consequently
independent of Matter. The denial therefore of this doth not imply the
denying them.

HYL. I grant it. But are there no other things? What think you of
distrusting the senses, of denying the real existence of sensible things,
or pretending to know nothing of them. Is not this sufficient to
denominate a man a SCEPTIC?

PHIL. Shall we therefore examine which of us it is that denies the
reality of sensible things, or professes the greatest ignorance of them;
since, if I take you rightly, he is to be esteemed the greatest
SCEPTIC?

HYL. That is what I desire.

PHIL. What mean you by Sensible Things?

HYL. Those things which are perceived by the senses. Can you imagine
that I mean anything else?