— 157 —
Clearness alone hinders Confusion.       §3. To the well distinguishing our Ideas, it chiefly contributes,
that they be clear and determinate: And when they are so, it will not
breed any confusion or mistake about them, though the Senses should
(as sometimes they do) convey them from the same Object different-
ly, on different occasions, and so seem to err. For though a Man in a
Fever should from Sugar have a bitter taste, which at another time
would produce a sweet one; yet the Idea of Bitter in that Man’s
Mind, would be as clear and distinct from the Idea of Sweet, as if he
had tasted only Gall. Nor does it make any more confusion between
the two Ideas of Sweet and Bitter, that the same sort of Body
produces at one time one, and at another time another Idea, by the
taste, than it makes a confusion in the two Ideas of White and
Sweet, or White and Round, that the same piece of Sugar produces
them both in the Mind at the same time. And the Ideas of Orange-
colour and Azure, that are produced in the Mind by the same par-
cel of the infusion of Lignum Nephriticum, are no less distinct Ideas,
than those of the same Colours, taken from two very different Bodies.
Locke Hum II, 11, §3, p. 157