All human thinking gets dicursified; we exchange ideas; we lend and borrow verifications, get them from one another by means of social intercourse. All truth thus gets verbally built out, stored up, and made available for everyone. Hence, we must talk consistently just as we must think consistently: for both in talk and thought we deal with kinds. Names are arbitrary, but once understood they must be kept to. We mustn’t now call Abel “Cain”, or Cain “Abel”. If we do, we ungear ourselves from the whole book of Genesis, and from all its connexions with the universe of speech and fact down to the present time. We throw ourselves out of whatever truth that entire system of speech and fact may embody.
Pg 93, Pragmatism – William James, ISBN 978-0-7607-4996-8