For all the inquiries we can make concerning any of our ideas, all that we know or can affirm concerning any of them, is, That it is, or is not, the same with some other; that it does or does not always co-exist with some other idea in the same subject;
Zeren gure edozein ideiari buruz egin dezakegun ikerketa oro, haietako edozeini buruz dakigun edo baiezta dezakegun oro, hauxe da: