A Tautology (n.) like 'That's that' emphasizes: it files the matter, drawing a line round it as round the result of a calculation.
A Tautology (n.) such as it either rains or it doesn't gives no information, as take it or leave it gives no order.
A Tautology (n.) like p ⊃ p is a degenerate proposition on the side of truth — a pivot of our method of description.
A Tautology (n.) says nothing: either it is raining or not tells us nothing about the weather.
A Tautology (n.) like war is war is not an instance of the law of identity; one asks the occasion and purpose of such phrases.
A Tautology (n.) still portrays, but so loosely tied to reality that reality has unlimited freedom; contradiction leaves it none.
Tautology (n.) and contradiction both say nothing, yet are not zero points on one scale but opposite poles.
A Tautology (n.) cannot be called true, being made so as to be true; it pictures nothing and is what all clashing pictures share.
A Tautology (n.) is not nonsense like a sentence with meaningless words; its meaningful parts are linked so they paralyse one another.
Tautology (n.) must be explained before identity, and its nature is the fundamental question of all logic.