Spinoza’s Hatchet and the Ethics of Objecthood      By Richard Mather       “For the only perfection and the final purpose [...] of an instrument is to duly fulfil the duties that are assigned to them. For instance, when a carpenter finds himself best served by his hatchet in the construction of a piece of work, then has his hatchet attained its end and perfection; but if he were to think, ‘This hatchet has now served me so well that I will let it rest and not require any mor