Logic is the science of the laws of thought, as thought,--that is of the necessary conditions to which thought considered in itself is a subject.
Sir William Hamilton, 9th BaronetA judgment is the mental act by which one thing is affirmed or denied of another.
Sir William Hamilton, 9th BaronetThere is a distinction, but no opposition, between theory and practice. Each to a certain extent supposes the other. Theory is dependent on practice; practice must have preceded theory.
Sir William Hamilton, 9th Baronet