And see, a kind, refined lady will devour the carcasses of these animals with full assurance that she is doing right, at the same time asserting two contradictory propositions: First, that she is, as her doctor assures her, so delicate that she cannot be sustained by vegetable food alone, and that for her feeble organism flesh is indispensable; and, secondly, that she is so sensitive that she is unable, not only herself to inflict suffering on animals, but even to bear the sight of suffering. Whereas the poor lady is weak precisely because she has been taught to live upon food unnatural to man; and she cannot avoid causing suffering to animals — for she eats them.
Leo Tolstoy