Truth will sooner come out from error than from confusion.

Truth therefore and utility are here the very same thing:

Since my logic aims to teach and instruct the understanding, not that it may with the slender tendrils of the mind snatch at and lay hold of abstract notions (…

There is another ground of hope that must not be omitted. Let men but think over their infinite expenditure of understanding, time, and means on matters and pu…

There is something to be said for every error; but, whatever may be said for it, the most important thing to be said about it is that it is erroneous.

The true knowledge or science which exists nowhere but in the mind itself, has no other entity at all besides intelligibility; and therefore whatsoever is clea…

The logic now in use serves rather to fix and give stability to the errors which have their foundation in commonly received notions than to help the search for…