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Critical ethics will be the science of the general
conditions of control; and it is easy to see that
it comes chiefly to the doctrine of self-control.

Logic is takes its start in that. It is but
an application of morals and ethics to thought.
For reasoning differs from the formation of a
new belief by the action of the association of ideas
only be being a deliberate, controlled piece
of conduct.

However, the one sole way to make logic success in logic
is to regard it as a science of signs; and I
defined it in 1867 as the theory of the relation
of symbols to their objects. Further experience
has convinced me that the best plan is to consider
logic as embracing more than that, and