“And I thought of the Transit of Venus: that though the bodies be vast and distant, and their motions occult, their hesitations retrograde, one could, I thought, with exceeding care and preparation, observe, and in their distance, know them, triangulate to arrive at the ambits of their motivation; and that in this calculation alone, one might banish uncertainty, and know at last what constituted other bodies, and how small the gulf that lies between us all.”