The following drawn from my reading in and around Charles Sanders Peirce.
Logic does not depend upon subjective feeling
All reasoning refers to a general method
Truth lies in fact not inconceivability
Metaphysics should be founded on logic not the other way around
"All the psychology in the world will leave the logical problem just where it was"
Logic deals with how we ought to think not how we think
Logic is not concerned with how we know reality but what is clearly real
Mutations and changes of language have nothing to do with logic
The language of logic is universal and transcends particular languages
Logic leads a process by which knowledge advances
Initial assumptions power the most persuasive logic
The history of science can contribute much in the way of evidence
Looks aka experience can deceive
There is a distinction between logical principles and other facts
