Whereupon I thought it convenient to advertise the reader, that besides several corrections I had made here and there, there was one alteration which it was necessary to mention, because it ran through the whole book, and is of consequence to be rightly understood.

What I thereupon said was this:-- CLEAR and DISTINCT ideas are terms which, though familiar and frequent in men's mouths, I have reason to think every one who uses does not perfectly understand.

And possibly 'tis but here and there one who gives himself the trouble to consider them so far as to know what he himself or others precisely mean by them.

I have therefore in most places chose to put DETERMINATE or DETERMINED, instead of CLEAR and DISTINCT, as more likely to direct men's thoughts to my meaning in this matter.

By those denominations, I mean some object in the mind, and consequently determined, i.e.such as it is there seen and perceived to be.